Suggestions by @kevindolan

Charles Durning

as Winter Warlock in Santa Claus is Coming to Town (1990)

Don Knotts

as S.D. Kluger in Santa Claus is Coming to Town (1990)

Drew Barrymore

as Karen in Frosty the Snowman (1989)

Dom DeLuise

as Frosty the Snowman in Frosty the Snowman (1989)

Candy Candido

as Bumble the Abominable Snowmonster in Rudolph the Red-Nosed Reindeer (1984)

Dr. Wily

as [CLOSED] Next Character in Casting a random character every saturday #8: Mary Jane Watson

Amy Rose

as [CLOSED] Next Character in Casting a random character every saturday #8: Mary Jane Watson

Spider-Ham (Peter Porker)

as [CLOSED] Next Character in Casting a random character every saturday #8: Mary Jane Watson

Alan Lee

as Spider-man (animation) in Casting a random character every saturday #7: Spider-man

Bill Farmer

as Principal Secretary in Kiff (1993)

Vincent Martella

as Spyro the Dragon in Casting a random character every saturday #6: Spyro

Jacob Tremblay

as Wyborne Lovat in Coraline (2019)

Craig Robinson

as The Cat in Coraline (2019)

Jordan Peele

as Krumm in Ahhh Real Monsters (Horror)

Adam DeVine

as Ickis in Ahhh Real Monsters (Horror)

Alex Cazares

as Oblina in Ahhh Real Monsters (Horror)

Anthony Daniels

as C-3PO in Best Star Wars Actors

Eric Bauza

as Luke Skywalker in Best Star Wars Actors

Burgess Meredith

as Tower Guard in Minions (1995)

Annie Potts

as Scarlet Overkill in Minions (1995)