Suggestions by @skytalk

Sinbad

as Scott in Good Luck, Have Fun, Don't Die (1996)

Drake Bell

as The AI Boy in Good Luck, Have Fun, Don't Die (1996)

Janus Blythe

as Francis in Keeper (1975)

Freda Foh Shen

as Leslie in Keeper (1975)

Olympia Dukakis

as Louise in Keeper (1975)

Piper Laurie

as Julia in Keeper (1975)

Teri Garr

as Baghead 2 / Maggie in Keeper (1975)

Jennifer Salt

as Baghead 1 in Keeper (1975)

Nancy Allen

as Minka in Keeper (1975)

Johnny Whitaker

as Teenage Darren in Keeper (1975)

Robert Duvall

as Darren Westbridge in Keeper (1975)

Emilio Estevez

as Teenage Malcolm in Keeper (1975)

James Coburn

as Dr. Malcolm Westbridge in Keeper (1975)

Ellen Burstyn

as Liz in Keeper (1975)

Brian De Palma

as Director in Keeper (1975)

Jack Nitzsche

as Composer in Keeper (1975)

Christopher Walken

as Alden Kupferberg ("Sea Otter") in The Wolf of Wall Street (1973)

James Mason

as Bo Dietl in The Wolf of Wall Street (1973)

Ruth Nelson

as Leah Belfort in The Wolf of Wall Street (1973)

Beatrice Straight

as Honorable Samantha Stogel in The Wolf of Wall Street (1973)