Suggestions by @maxcarter

William Haines

as Funtime Foxy in Universal's Ultimate Custom Night (1938)

Lucille La Verne

as Ballora in Universal's Ultimate Custom Night (1938)

Judy Garland

as Circus Baby in Universal's Ultimate Custom Night (1938)

Charley Grapewin

as Old Man Consequences in Universal's Ultimate Custom Night (1938)

Harry Earles

as Nightmare Balloon Boy in Universal's Ultimate Custom Night (1938)

Claude Rains

as Nightmarionette in Universal's Ultimate Custom Night (1938)

Greta Garbo

as Nightmare Mangle in Universal's Ultimate Custom Night (1938)

Margaret Sullavan

as Jack-O-Chica in Universal's Ultimate Custom Night (1938)

Lionel Barrymore

as Nightmare in Universal's Ultimate Custom Night (1938)

Glenn Strange

as Nightmare Fredbear in Universal's Ultimate Custom Night (1938)

George Bancroft

as Nightmare Bonnie in Universal's Ultimate Custom Night (1938)

Elmo Lincoln

as Nightmare Freddy in Universal's Ultimate Custom Night (1938)

Dickie Jones

as Phantom Balloon Boy in Universal's Ultimate Custom Night (1938)

Roscoe Arbuckle

as Phantom Freddy in Universal's Ultimate Custom Night (1938)

Mae West

as Phantom Mangle in Universal's Ultimate Custom Night (1938)

Paul Robeson

as Withered Golden Freddy in Universal's Ultimate Custom Night (1938)

Spencer Tracy

as Withered Bonnie in Universal's Ultimate Custom Night (1938)

Katharine Hepburn

as Withered Chica in Universal's Ultimate Custom Night (1938)

Conrad Veidt

as Foxy in Universal's Ultimate Custom Night (1938)

Katharine Hepburn

as Chica in Universal's Ultimate Custom Night (1938)