Suggestions by @harrybray

Val Kilmer

as Batman in Justice League vs Godzilla (1990's/Heisei Era)

Darkseid

as Darkseid in Justice League vs Godzilla (1990's/Heisei Era)

Christine Baranski

as Granny Goodness in Justice League : Darkseid Arrival

Maxwell Lord

as The Villain in Justice League vs Godzilla (1990's/Heisei Era)

Streeter Seidell

as Writer in Marci X (2023)

Richard Benjamin

as Producer in Marci X (2023)

Marc Lawrence

as Director in Marci X (2023)

Adam McKay

as Director in Marci X (2023)

Judd Apatow

as Director in Marci X (2023)

BTS

as Boys r us in Marci X (2023)

Zayn Malik

as Boys r us in Marci X (2023)

Joe Dante

as Director in Santa Claus Conquers the Martians

Iain Armitage

as Chip Spinkle in Marci X (2023)

Laura Linney

as Senator Spinkle in Marci X (2023)

Bryan Cranston

as Ben Feld in Marci X (2023)

Tom Hanks

as Ben Feld in Marci X (2023)

Michael Keaton

as Ben Feld in Marci X (2023)

Chris Redd

as Dr S (Kelvin Drill) in Marci X (2023)

Taylor Tomlinson

as Marci Feld in Marci X (2023)

Ian McDiarmid

as Palpatine (cameo) in William Shakespeare’s Star Wars