Suggestions by @user_284781
1,713 suggestions

Robert Stack
as The Lich in Adventure Time (1990-1998)

Don Francks
as The Lich in Adventure Time (1990-1998)

Tony Rosato
as The Lich in Adventure Time (1990-1998)

Wayne Robson
as The Lich in Adventure Time (1990-1998)

Donald Sutherland
as The Lich in Adventure Time (1990-1998)

John Candy
as Ice King in Adventure Time (1990-1998)
Will Ryan
as Ice King in Adventure Time (1990-1998)

Rene Auberjonois
as Ice King in Adventure Time (1990-1998)

John Hurt
as Ice King in Adventure Time (1990-1998)

Bruce Adler
as Ice King in Adventure Time (1990-1998)

Jerry Orbach
as Ice King in Adventure Time (1990-1998)

Buzz Lightyear
as John Barrymore in Characters golden age stars could have played

Buzz Lightyear
as John Barrymore in Voice actors and characters

God of Chickens
as John Barrymore in Voice actors and characters

Optimus Prime
as John Barrymore in Voice actors and characters

Two-Face (Harvey Dent)
as John Barrymore in Voice actors and characters

Lizard (Dr. Curt Connors)
as John Barrymore in Voice actors and characters
Nicole Eggert
as Susan Strong in Adventure Time (1990-1998)
Neil Ross
as Peppermint Butler in Adventure Time (1990-1998)

Winona Ryder
as BMO in Adventure Time (1990-1998)