Suggestions by @ringothedrummer

Matt Wood

as Wario in Super Mario Bros.

Jason Momoa

as Bowser in Super Mario Bros.

Hunter Schafer

as Princess Peach in Super Mario Bros.

Dominic Sessa

as Luigi in Super Mario Bros.

Michael Gandolfini

as Mario in Super Mario Bros.

John Lithgow

as Earl Partridge in Magnolia

Emma Stone

as Linda Partridge in Magnolia

J.K. Simmons

as Jimmy Gator in Magnolia

Austin Butler

as Frank T.J. Mackey in Magnolia

Jesse Plemons

as Phil Parma in Magnolia

Scoot McNairy

as Quiz Kid Donnie Smith in Magnolia

Curly Howard

as Curly Howard in Mouse Trap Hotel (1941)

Spoiler

as The Famous Director in Booster Gold

Linda Cardellini

as Mackenzie Garrison in Booster Gold

Grace Van Dien

as Monica Lake in Booster Gold

Jimmy O. Yang

as Dr. Jack Soo in Booster Gold

Jake Johnson

as Ted Kord in Booster Gold

Xolo Maridueña

as Blue Beetle in Booster Gold

Lily James

as Goldstar in Booster Gold

Dylan McDermott

as The Director in Booster Gold