Suggestions by @cocosweet

Snowy

as Snowy in Once Upon a Studio (My Dream Version)

Jamie Bell

as Tintin in Once Upon a Studio (My Dream Version)

Feathers McGraw

as Feathers McGraw in Once Upon a Studio (My Dream Version)

William Atherton

as Walter Peck in Once Upon a Studio (My Dream Version)

Arsenio Hall

as Winston Zeddemore in Once Upon a Studio (My Dream Version)

Ernie Hudson

as Winston Zeddemore in Once Upon a Studio (My Dream Version)

Dave Coulier

as Peter Venkman in Once Upon a Studio (My Dream Version)

Lorenzo Music

as Peter Venkman in Once Upon a Studio (My Dream Version)

Bill Murray

as Peter Venkman in Once Upon a Studio (My Dream Version)

Frank Welker

as Ray Stantz in Once Upon a Studio (My Dream Version)

Dan Aykroyd

as Ray Stantz in Once Upon a Studio (My Dream Version)

Humphrey Bogart

as Rick Blaine in Once Upon a Studio (My Dream Version)

Maurice LaMarche

as Egon Spengler in Once Upon a Studio (My Dream Version)

Harold Ramis

as Egon Spengler in Once Upon a Studio (My Dream Version)

Harold Ramis

as Writer in Casablanca (1985)