On November 2, 2001,Monsters, Inc.arrived in theaters.

John Goodman as Sulley

John Goodmanbrought James P. “Sulley” Sullivan to the big screen.

He starred as himself on the TV seriesThe Comediansand has made his Broadway musical comedy debut in 2022 inMr.

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Credit: Pixar/Disney

Saturday Night, a stage adaptation of his critically acclaimed film of the same name from 1992.

She largely abandoned acting afterMonsters, Inc.hit theaters andnow works as a yoga instructor.

Jennifer Tilly as Celia Mae

Monsters, Inc.found its receptionist Celia Mae inJennifer Tilly.

John Goodman as Sulley

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She’s also voiced the recurring character of Bonnie Swanson onFamily Guyfor more than 20 years.

Peterson voiced the monster as his first major acting project after lending his voice to a short in 1997.

John Ratzenberger as Yeti

John RatzenbergervoicedMonsters, Inc.’s Yeti a few decades into his career.

Billy Crystal as Mike Wazowski

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Mary Gibbs as Boo

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Steve Buscemi as Randall Boggs

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James Coburn as Henry J. Waternoose

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Jennifer Tilly as Celia Mae

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Bob Peterson as Roz

Buena Vista Pictures/Courtesy Everett Collection; Alberto E. Rodriguez/Getty Images

John Ratzenberger as Yeti

Buena Vista Pictures/Courtesy Everett Collection; Alberto E. Rodriguez/Getty Images