Written by Ashton Snyder on
 February 24, 2025

Unexpected Passing of Actress Lynne Marie Stewart at 78

The entertainment industry lost a versatile performer known for her roles spanning decades of television and film.

According to The Daily Caller, Lynne Marie Stewart, recognized for her iconic roles in "American Graffiti" and "Pee-wee's Playhouse," passed away unexpectedly on February 21 at her sister's home in California after doctors discovered a tumor between her liver and gallbladder in December.

The actress maintained an active career until her diagnosis, having recently completed work on Ben Stiller's upcoming film "The Dink" and continuing her recurring role on "It's Always Sunny in Philadelphia." Her manager, Bette Smith, shared the news with heavy hearts, emphasizing Stewart's remarkable talent and character.

Career spanning five decades in entertainment

Stewart amassed nearly 150 acting credits throughout her illustrious career, demonstrating remarkable versatility across different genres and mediums.

Her performances ranged from memorable appearances in classic films like "American Graffiti" to recurring roles in beloved television series.

The actress gained widespread recognition for her portrayal of Miss Yvonne in various "Pee-wee" productions, including "Pee-wee's Big Adventure" and "Big Top Pee-wee." Her television work included appearances in iconic shows such as "MAS*H" and "Laverne & Shirley."

Stewart's talent extended beyond live-action roles, as she lent her voice to numerous animated series including "Batman: The Animated Series" and "A Pup Named Scooby-Doo."

Hollywood stars mourn the loss of talented colleague

News of Stewart's passing prompted an outpouring of tributes from fellow actors and industry professionals. Cassandra Peterson, known as Elvira, shared her grief on the social media platform X.

She wrote:

My heart is breaking upon hearing the news of my dear friend Lynne Stewart's passing. One of the kindest, sweetest, funniest women who ever lived. The iconic Miss Yvonne of Pee-wee's Playhouse: She'll always be 'the most beautiful woman in Puppetland'.

Danny DeVito, who worked with Stewart on "It's Always Sunny in Philadelphia," expressed his sadness through social media, highlighting her wonderful spirit and sending love to her family. The entertainment community continues to share memories and messages of appreciation for the late actress.

Legacy of versatile performer lives on

Lynne Marie Stewart, aged 78, passed away at her sister's California residence following the discovery of a tumor between her liver and gallbladder in December.

Her career spanned nearly 150 acting credits across television, film, and voice work, with notable roles in "American Graffiti," "Pee-wee's Playhouse," and "It's Always Sunny in Philadelphia."

The actress remained active in her craft until her diagnosis, completing work on Ben Stiller's "The Dink" and maintaining her television appearances. Her passing leaves behind a rich legacy of performances that touched audiences across multiple generations of entertainment.

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About Ashton Snyder

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