Red Skull vs Joker Real Name
Alter Ego
Johann Shmidt
Jack Napier
Alias
Roter Schädel, Bettman P. Lyles, The Agent of a Thousand Faces (whom he once impersonated during World War II) & The Man (head of the People's Militia)
Harlequin of Hate, King of Arkham Asylum, Red Hood, Jack Napier & Mr. Face Paint
In Films
Hugo Weaving, Scott Paulin
Cesar romero, Heath ledger, Jack nicholson, Jared leto, Rod navarro
Alignment
Supervillain
Supervillain