Every Major ‘Nickelodeon’ Actor Who Died

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Nickelodeon shaped childhoods with live action comedies and animated hits, and many of the talents who brought those characters to life have since passed away. From beloved sketch performers to legendary voice actors, their work still plays on screens around the world. Here are the major names connected to Nickelodeon who left a lasting mark through iconic roles and unforgettable episodes.

Ernest Borgnine

Ernest BorgnineTMDb

Ernest Borgnine voiced Mermaid Man on ‘SpongeBob SquarePants’ for more than a decade. He first appeared in the episode that introduced the retired superhero duo Mermaid Man and Barnacle Boy. His energetic delivery turned the character into a fan favorite across multiple specials and seasons. Borgnine died in 2012 at the age of 95.

Tim Conway

Tim ConwayTMDb

Tim Conway voiced Barnacle Boy on ‘SpongeBob SquarePants’ alongside Ernest Borgnine. He debuted with the superhero pair and continued through many sequel episodes and specials. His dry, quick timing matched the show’s quirky tone and balanced Borgnine’s bombastic style. Conway died in 2019 at the age of 85.

Christine Cavanaugh

Christine CavanaughTMDb

Christine Cavanaugh originated the voice of Chuckie Finster on ‘Rugrats’. She voiced the character through the series’ early years, the first feature film, and various specials before retiring from voice acting. Her performance defined Chuckie’s cautious charm and helped anchor many storylines. Cavanaugh died in 2014 at the age of 51.

Jack Riley

Jack RileyTMDb

Jack Riley voiced Stu Pickles, the inventive dad on ‘Rugrats’. He appeared across the original series, holiday episodes, and theatrical releases. Riley’s work helped shape the show’s family dynamic and carried into spinoff projects. He died in 2016 at the age of 80.

David Doyle

David DoyleTMDb

David Doyle was the original voice of Grandpa Lou Pickles on ‘Rugrats’. His warm but feisty take on the character appears throughout the early seasons and specials. After his death, the production recast the role to keep the family stories going. Doyle died in 1997 at the age of 67.

Joe Alaskey

Joe AlaskeyTMDb

Joe Alaskey later voiced Grandpa Lou on ‘Rugrats’ and continued the role into subsequent projects. He also contributed additional voices across Nickelodeon programming. His work maintained continuity for the Pickles family after the original casting change. Alaskey died in 2016 at the age of 63.

Mako Iwamatsu

Jeff Share, Los Angeles Times/Wikipedia

Mako Iwamatsu voiced Iroh on ‘Avatar: The Last Airbender’ through most of the show’s first two seasons. His performance guided key episodes and gave emotional weight to Zuko’s arc. The series paid tribute to him after his passing and recast the role to complete the story. Mako died in 2006 at the age of 72.

René Auberjonois

René AuberjonoisTMDb

René Auberjonois voiced the Mechanist on ‘Avatar: The Last Airbender’. He appeared in episodes that introduced inventive technology to the world of the show. His guest role became a memorable part of the Earth Kingdom storyline. Auberjonois died in 2019 at the age of 79.

Steve Viksten

Nickelodeon

Steve Viksten wrote for ‘Hey Arnold!’ and voiced Oskar Kokoshka. His work helped define the show’s neighborhood feel and recurring character humor. He contributed to episodes that explored the lives of side characters around Arnold. Viksten died in 2014 at the age of 54.

Les Lye

Emily Lye/Wikipedia

Les Lye anchored ‘You Can’t Do That on Television’ with a wide range of recurring roles. The Canadian sketch series became a Nickelodeon staple and helped popularize the network’s signature green slime. Lye’s characters, including strict teachers and grumpy authority figures, appeared in hundreds of sketches. He died in 2009 at the age of 84.

Kirk Baily

Kirk BailyTMDb

Kirk Baily played camp counselor Kevin “Ug” Lee on ‘Salute Your Shorts’. He appeared across the show’s full run and remained a key figure in reunions and retrospectives. His character became one of Nickelodeon’s most recognizable live action roles of the early 1990s. Baily died in 2022 at the age of 59.

Martin Mull

Martin MullTMDb

Martin Mull voiced Vlad Masters and Vlad Plasmius on ‘Danny Phantom’. He portrayed the series’ principal villain across multiple seasons and specials. His performance mixed suave delivery with sharp menace and helped shape many of the show’s biggest arcs. Mull died in 2024 at the age of 80.

Adam West

Adam WestTMDb

Adam West voiced Catman on ‘The Fairly OddParents’. The character parodied classic superhero tropes and returned in repeat appearances across the series. West’s distinctive delivery made Catman one of the show’s most quoted recurring guests. He died in 2017 at the age of 88.

Norm Macdonald

Norm MacdonaldTMDb

Norm Macdonald voiced Norm the Genie on ‘The Fairly OddParents’. He appeared in several popular episodes built around wish making and loopholes. His dry, sly tone gave the character a memorable edge during Timmy’s trickiest adventures. Macdonald died in 2021 at the age of 61.

Gilbert Gottfried

Gilbert GottfriedTMDb

Gilbert Gottfried voiced Dr. Bender and his son Wendell on ‘The Fairly OddParents’. The characters tangled with Timmy across school and dental themed episodes. Gottfried’s unmistakable voice made both roles stand out in the show’s large ensemble. He died in 2022 at the age of 67.

David Bowie

David BowieTMDb

David Bowie guest starred as Lord Royal Highness in the ‘SpongeBob SquarePants’ special ‘Atlantis SquarePantis’. The appearance became a celebrated crossover between music and animation. He recorded original dialogue that fans still revisit in re airings and streaming. Bowie died in 2016 at the age of 69.

Paul Reubens

Paul ReubensTMDb

Paul Reubens voiced Sir Malachi in ‘Teenage Mutant Ninja Turtles’ on Nickelodeon. He appeared in episodes involving dream realms and mystical quests. Reubens also made other animation contributions for the network during special events and guest spots. He died in 2023 at the age of 70.

R. Lee Ermey

R. Lee ErmeyTMDb

R. Lee Ermey guest voiced a militaristic instructor on ‘SpongeBob SquarePants’. His appearance played on his well known command presence from other roles. The cameo became a standout moment in the show’s later seasons. Ermey died in 2018 at the age of 74.

Betty White

Betty WhiteTMDb

Betty White guest starred as herself on ‘iCarly’. The episode used her persona for a comedic cameo that tied into the show’s web show format. She later became part of Nickelodeon’s retrospective promotions highlighting iconic guest appearances. White died in 2021 at the age of 99.

Share your memories of these performers and the episodes you still rewatch in the comments.

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