Arnold Schwarzenegger and Danny DeVito once infamously played long-lost brothers in Ivan Reitman's 1988 comedy Twins. But for DC fans, the two legendary actors also have one very important thing in common. Both Schwarzenegger and DeVito played Batman villains on the big screen. DeVito starred opposite Michael Keaton in 1992's Batman Returns, playing the Penguin. Schwarzenegger portrayed Mr. Freeze in 1997's Batman & Robin, squaring off against George Clooney's caped crusader.