Suggestions by @milesyeargain

Lance Henriksen

as Braniac in Superman: Animated Series Live Action (1996-2000)

Bruce Willis

as Lex Luthor in Superman: Animated Series Live Action (1996-2000)

FAKE

as Jimmy Olsen in Superman: Animated Series Live Action (1996-2000)

Lane Smith

as Perry White in Superman: Animated Series Live Action (1996-2000)

Teri Hatcher

as Lois Lane in Superman: Animated Series Live Action (1996-2000)

Superman (Dean Cain)

as Superman in Superman: Animated Series Live Action (1996-2000)

Brock Peters

as Lucius Fox in Batman: The Animated Series Live Action (1992-1995) (1997-1999)

Alicia Silverstone

as Supergirl in Batman: The Animated Series Live Action (1992-1995) (1997-1999)

Clint Eastwood

as Jonah Hex in Batman: The Animated Series Live Action (1992-1995) (1997-1999)

Catherine Zeta-Jones

as Zatanna in Batman: The Animated Series Live Action (1992-1995) (1997-1999)

Sid Haig

as Killer Croc in Batman: The Animated Series Live Action (1992-1995) (1997-1999)

Joe Pesci

as Scarface in Batman: The Animated Series Live Action (1992-1995) (1997-1999)

Ben Kingsley

as Dr. Hugo Strange in Batman: The Animated Series Live Action (1992-1995) (1997-1999)

John Fiedler

as Arnold Wesker in Batman: The Animated Series Live Action (1992-1995) (1997-1999)

Jim Carrey

as Scarecrow in Batman: The Animated Series Live Action (1992-1995) (1997-1999)

Lou Ferrigno

as Bane in Batman: The Animated Series Live Action (1992-1995) (1997-1999)

Winona Ryder 90s

as Catwoman in Batman: The Animated Series Live Action (1992-1995) (1997-1999)

Alec Baldwin (Young)

as Two-Face in Batman: The Animated Series Live Action (1992-1995) (1997-1999)

John Malkovich

as The Riddler in Batman: The Animated Series Live Action (1992-1995) (1997-1999)

Danny DeVito

as The Penguin in Batman: The Animated Series Live Action (1992-1995) (1997-1999)