PUBLICITY RIGHTS EXPERT WITNESSES & TESTIMONY CONSULTANTS FOR LAWYERS & LAW FIRMS

Top publicity rights expert witnesses and testimony consultants note that is an increasingly important issue in litigation involving celebrities, athletes, influencers, entertainers, brands, advertisers, publishers, social media networks, and other businesses.

As the best publicity rights expert witnesses point out, the law concerns the commercial use of aspects of an individual’s identity. Depending on the jurisdiction and circumstances, those interests may involve a person’s name, image, likeness, voice, signature, persona, or other identifying characteristics.

Disputes that global publicity rights expert witnesses cover can become particularly complicated when technology, advertising, social media, artificial intelligence, endorsements, merchandising, or digital media are involved.

An SME can provide specialized knowledge concerning the commercial value of a person’s identity, industry practices, licensing, endorsements, celebrity branding, advertising, talent agreements, and other issues that may arise when an individual’s identity is allegedly used without authorization.

We look at what publicity rights expert witnesses do, when they may be needed, what qualifications to look for, the types of disputes in which they may participate, and common issues involved in publicity-rights expert testimony.

What Is a Publicity Rights Expert Witness?

A publicity rights expert witness is a professional with specialized knowledge, skill, experience, training, or education concerning celebrity licensing, endorsements, talent representation, advertising, entertainment, branding, marketing, sponsorships, personality rights, or related commercial practices.

Depending on the case, an expert may provide opinions concerning:

Commercial value of a person’s identity
Celebrity endorsements
Licensing fees
Talent compensation
Sponsorship arrangements
Advertising practices
Brand partnerships
Merchandising
Celebrity marketing
Influencer agreements
Name, image, and likeness licensing
Industry customs
Damages
Lost licensing opportunities
Reasonable royalty rates
Campaign valuation

The expert’s role is generally to provide specialized factual or industry knowledge—not to tell the court what legal result it should reach.

Why Are Publicity Rights Experts Needed?

Publicity-rights cases frequently involve questions that ordinary evidence does not completely answer.

For example:

What would a celebrity ordinarily charge for a national advertising campaign?
What is the commercial value of an athlete’s identity?
What would a reasonable licensing fee have been?
How much might an endorsement have been worth?
Did the alleged use exploit the individual’s commercial persona?
How are celebrity licensing deals normally structured?
What factors affect endorsement compensation?
Would the alleged use ordinarily require a license?

These questions may require specialized knowledge of entertainment, advertising, marketing, sponsorship, and licensing markets.

Publicity Rights vs. Legal Analysis

An expert should be careful to distinguish industry expertise from legal conclusions.

For example, an expert may explain that celebrity endorsements are ordinarily licensed through negotiated agreements and that particular categories of use command particular fees.

The expert generally should not simply declare:

“The defendant violated the right of publicity.”

Whether a particular use violates applicable law is typically a legal question for the court.

The expert can provide the factual and commercial foundation necessary for the legal analysis.

Name, Image, and Likeness

Publicity disputes often involve the commercial exploitation of a person’s:

Name
Photograph
Image
Likeness
Voice
Signature
Persona
Distinctive characteristics

The precise scope of protected interests varies by jurisdiction.

An expert may help explain how these attributes function commercially and how businesses ordinarily license them.

Celebrity Endorsements

Celebrity endorsements are a major source of publicity-rights disputes.

A brand may hire a celebrity to:

Appear in advertisements
Promote products
Attend events
Post on social media
Record commercials
Participate in campaigns
License photographs
Appear on packaging
Provide testimonials

An expert may analyze the commercial terms of comparable endorsement arrangements.

Influencers and Publicity Rights

Publicity-rights disputes are no longer limited to traditional celebrities.

Influencers and social-media creators may have commercially valuable identities and audiences.

An expert may analyze:

Influencer endorsement fees
Social-media campaigns
Content licensing
Image usage
Creator agreements
Brand partnerships
Audience size
Engagement
Platform reach

The commercial value of an influencer’s identity can depend on factors beyond follower count.

Athletes and Publicity Rights

Professional athletes may have substantial commercial value independent of their playing contracts.

Their names and likenesses may be used in:

Advertising
Apparel
Trading cards
Video games
Memorabilia
Sponsorships
Product endorsements
Promotional campaigns

A publicity-rights expert may evaluate the athlete’s endorsement market and comparable licensing arrangements.

Actors, Musicians, and Entertainers

Entertainment professionals may license their identities for:

Advertising
Merchandise
Video games
Television
Film
Music-related products
Brand campaigns
Promotional events

An expert may analyze the individual’s market position and comparable commercial arrangements.

Publicity Rights and Advertising

Advertising cases can raise particularly important valuation questions.

Suppose a company allegedly uses a celebrity’s likeness in a national advertising campaign without authorization.

The expert may examine:

Campaign duration
Geographic scope
Media placement
Audience size
Product category
Celebrity recognition
Exclusivity
Intended association
Creative prominence
Distribution
Industry pricing

These factors may influence what a legitimate license could have cost.

Valuing a Publicity Right

Valuation is often one of the most important functions of a publicity-rights expert.

The expert may consider:

Celebrity status

A highly recognizable celebrity may command a different fee from a relatively unknown personality.

Industry

Endorsement values differ across industries.

Audience

The size and characteristics of the relevant audience can influence commercial value.

Campaign scope

A national television campaign may have a substantially different value from a localized social-media campaign.

Duration

The length of the alleged use can affect valuation.

Exclusivity

Exclusive rights may command a premium.

Product category

Some product categories may carry greater commercial value or reputational considerations.

Media

Television, digital advertising, print, packaging, social media, and point-of-sale uses may have different commercial values.

Timing

The individual’s market value at the relevant time is important.

A celebrity’s commercial market can change substantially over time.

Comparable Licensing Agreements

Experts may use comparable agreements to estimate value.

Potential comparables may involve:

Similar celebrities
Similar campaigns
Similar industries
Similar geographic scope
Similar media
Similar duration
Similar exclusivity
Similar usage rights

However, no two endorsement deals are necessarily identical.

An expert should explain why particular comparables are sufficiently similar to provide useful evidence.

Reasonable Royalty Analysis

In some disputes, an expert may analyze what a hypothetical negotiation between the parties might have produced.

The analysis may consider:

Bargaining positions
Market rates
Celebrity demand
Campaign scope
Duration
Exclusivity
Intended commercial use
Comparable agreements

The precise damages methodology depends on the applicable law and claims.

A damages expert may also work alongside the publicity-rights expert.

Lost Licensing Opportunities

A plaintiff may argue that unauthorized use deprived them of a legitimate licensing opportunity.

An expert may analyze:

Existing licensing relationships
Prior endorsements
Historical fees
Market demand
Potential advertisers
Exclusivity restrictions
Reputation
Timing

The expert should distinguish actual lost opportunities from speculative possibilities.

Unjust Enrichment and Disgorgement

Some publicity-rights disputes involve arguments concerning profits or benefits allegedly obtained from unauthorized use.

A marketing or publicity-rights expert may help determine how the individual’s identity contributed to a campaign’s commercial value.

However, allocating total profits to the alleged use can be difficult.

A campaign may have received value from many factors, including:

Product quality
Advertising creative
Distribution
Pricing
Brand reputation
Other celebrities
Media spending
Retail presence

A careful expert should avoid assuming that all campaign profits resulted from the individual’s identity.

Publicity Rights and Artificial Intelligence

AI has introduced new publicity-rights questions.

Potential disputes may involve:

AI-generated celebrity likenesses
Synthetic voices
Digital replicas
Virtual performers
AI-generated endorsements
Unauthorized digital avatars
Training or generation involving identifiable personas

An expert may be asked to evaluate the commercial significance of the identity used and how comparable digital licensing arrangements are structured.

AI-related disputes may require multiple experts, including technology, entertainment, marketing, and damages specialists.

Publicity Rights and Social Media

Social media has created new forms of identity exploitation.

Potential uses include:

Reposting photographs
Sponsored posts
Fake endorsements
Impersonation
Paid advertisements
Memes
Promotional videos
User-generated content
Influencer collaborations

An expert can explain how brands and creators ordinarily negotiate these rights.

Unauthorized Endorsements

A particularly significant issue arises when consumers may believe a celebrity endorses a product when no endorsement exists.

An expert may examine:

How prominently the identity appears
Advertising context
Brand messaging
Celebrity recognition
Product category
Campaign presentation
Industry endorsement practices

The expert may explain how a legitimate endorsement relationship would ordinarily be structured.

Publicity Rights and Merchandising

Merchandising disputes may involve the unauthorized use of an individual’s identity on:

Clothing
Posters
Collectibles
Toys
Games
Accessories
Packaging
Memorabilia

An expert may evaluate licensing structures and market values for comparable merchandise rights.

Publicity Rights and Video Games

Video games can involve complex identity-rights issues.

A game may incorporate:

Athlete likenesses
Celebrity characters
Names
Voices
Biographical characteristics
Digital representations

An expert may help explain how licensing deals for digital representations are commonly structured.

Publicity Rights and Right of Publicity Duration

The duration of publicity rights varies significantly among jurisdictions.

Some jurisdictions recognize postmortem publicity rights, while others treat publicity interests differently.

An expert can provide industry information about the commercial exploitation of a deceased person’s identity, but the legal duration and scope of a publicity right is ultimately a matter of applicable law.

Publicity Rights Expert Qualifications

There is no universal professional license for publicity-rights experts.

Potential qualifications include:

Entertainment-industry experience
Talent agency experience
Brand licensing
Celebrity marketing
Advertising
Sponsorship management
Sports marketing
Influencer marketing
Licensing negotiations
Entertainment law industry experience
Academic research
Industry publications
Executive experience

An expert’s qualifications should correspond to the opinions being offered.

Entertainment Executive as Expert

An experienced entertainment or marketing executive may be particularly valuable when the case concerns real-world commercial practices.

Such an expert may understand:

How endorsement deals are negotiated
How celebrity fees are determined
How brands select talent
How licensing rights are valued
How campaigns are structured

Practical experience can provide insight that purely academic analysis may not capture.

Economist or Damages Expert vs. Publicity Expert

These experts may have complementary roles.

A publicity-rights expert may determine:

Industry licensing practices
Comparable endorsement fees
Commercial value
Market customs

An economist or damages expert may then apply an appropriate economic methodology to calculate damages.

The appropriate division depends on the case and applicable law.

Evidence a Publicity Rights Expert May Review

An expert may examine:

Talent agreements
Endorsement contracts
Licensing agreements
Advertising campaigns
Social-media posts
Photographs
Videos
Marketing materials
Compensation records
Prior endorsement deals
Comparable agreements
Brand campaigns
Media plans
Sales data
Revenue information
Licensing histories
Communications between parties
Common Problems in Publicity-Rights Expert Testimony
Using inappropriate comparables

A celebrity endorsement cannot necessarily be valued using any available celebrity deal.

Ignoring campaign scope

A local campaign and national campaign may have radically different values.

Ignoring timing

A person’s commercial value can change substantially over time.

Treating celebrity value as static

Market value depends on context and circumstances.

Assuming all campaign profits came from the identity

Marketing campaigns contain numerous value-generating components.

Confusing commercial value with legal liability

An identity may have substantial commercial value without that fact alone establishing legal liability.

Overstating certainty

Valuation frequently involves assumptions and judgment.

A credible expert should clearly identify those assumptions.

Preparing a Publicity Rights Expert Report

A strong expert report should generally explain:

Qualifications.
Assignment.
Materials reviewed.
Relevant industry background.
Methodology.
Comparable transactions.
Valuation factors.
Analysis.
Opinions.
Limitations.

The report should make clear which conclusions are based on documented evidence and which involve professional judgment.

Preparing for Deposition

Counsel should prepare the expert to address:

Qualifications
Industry experience
Comparable agreements
Celebrity valuation
Licensing practices
Endorsement fees
Campaign scope
Market conditions
Assumptions
Alternative valuation methods
Prior testimony
Publications
Compensation

The expert should be able to explain why the selected comparables are appropriate and why alternative comparables are less useful.

Preparing for Trial

Publicity-rights testimony can benefit from visual evidence.

Useful exhibits may include:

Advertising examples
Licensing timelines
Comparable endorsement agreements
Campaign reach
Market comparisons
Fee comparisons
Licensing structures
Valuation models

The expert should explain complicated commercial concepts in straightforward language.

Questions to Ask Before Retaining a Publicity Rights Expert

Attorneys should consider asking:

What is your experience with celebrity licensing?
Have you negotiated or evaluated endorsement agreements?
Have you worked with athletes, entertainers, or influencers?
What types of publicity rights have you valued?
How do you select comparable licensing agreements?
Have you testified previously?
Have you worked for both plaintiffs and defendants?
What information would you need?
How would you determine market value?
How would you account for campaign scope?
How would you account for duration?
How would you account for exclusivity?
What limitations do you anticipate?
Do you have any conflicts?
What are your fees?
Are you available for deposition and trial?
How Much Does a Publicity Rights Expert Witness Cost?

Fees vary depending on the expert’s experience, reputation, case complexity, research requirements, and testimony schedule.

Potential charges include:

Initial consultation
Case review
Industry research
Comparable-agreement research
Valuation analysis
Expert report
Meetings with counsel
Deposition preparation
Deposition testimony
Trial preparation
Trial testimony
Travel

Cases involving extensive historical licensing research may require substantial expert time.

Choosing the Right Publicity Rights Expert

The correct expert depends on the dispute.

For a celebrity endorsement case, look for experience negotiating or evaluating endorsement deals.

For an athlete case, consider an expert with sports-marketing and athlete-licensing experience.

For an influencer case, consider an expert familiar with creator economics and social-media campaigns.

For an AI likeness dispute, consider whether the case requires both publicity-rights expertise and technical AI expertise.

For a damages case, the publicity expert may need to work with an economist or financial expert.

Final Checklist

Before retaining a publicity-rights expert witness, confirm:

Industry experience: The expert understands the relevant entertainment, advertising, sports, or creator market.

Licensing expertise: They understand how identity rights are commercially licensed.

Valuation expertise: They can explain how market value is determined.

Comparable evidence: They can identify meaningful comparable agreements.

Historical knowledge: They understand market conditions during the relevant period.

Analytical rigor: Their methodology can withstand scrutiny.

Litigation experience: They understand reports, depositions, and trial testimony.

Communication: They can explain commercial concepts clearly.

Independence: They are willing to address unfavorable evidence.

Appropriate scope: Their opinions stay within their expertise and do not improperly substitute for legal conclusions.

Law Firm Testifying and Consulting Services

Publicity-rights litigation sits at the intersection of law, entertainment, advertising, branding, licensing, and commerce.

Determining the commercial value of a person’s identity is rarely as simple as assigning a number to a name or photograph. The value may depend on the individual’s reputation, audience, industry, campaign, geographic reach, duration, exclusivity, media exposure, product category, and the specific rights being exploited.

A qualified publicity rights expert witness can provide valuable insight into those commercial questions.

The strongest expert does more than identify a celebrity’s market value. They explain how that value is created, how similar rights are licensed, what comparable transactions demonstrate, how campaign characteristics affect pricing, and what conclusions can reasonably be drawn from the available evidence.

For attorneys, the key question is not simply:

“Is this person familiar with celebrity marketing?”

It is:

“Does this expert have the specialized licensing, advertising, entertainment, valuation, and industry knowledge necessary to address the specific publicity-rights issues in this case?”

Selecting the right expert can help transform complicated commercial evidence into a clear, defensible analysis that allows the court to understand the economic and industry realities surrounding the alleged use of a person’s identity.

This guest post is provided for general informational purposes and does not constitute legal advice. Publicity-rights law varies significantly by jurisdiction, and the admissibility and scope of expert testimony depend on the specific case.