10 Things Futurama Wants You To Forget

10. Robot Santa's Original Voice

There have been dozens of celebrity guests on Futurama throughout the years, and though most of them appear as their own head in a jar, there are some that portray an original character rather than themselves. Emilia Clarke, Coolio, and Sigourney Weaver are just three among these names, as is John Goodman.

In Season Two's 'Xmas Story', Goodman lends his voice as Robot Santa, the evil metallic version of Saint Nick that judges everyone in the future to be naughty. He is a hilarious character, and was brought back to Futurama three more times in Season Three's 'A Tale of Two Santas', Season Six's 'The Futurama Holiday Spectacular', and 'Bender's Big Score'.

The only problem however, is that John Goodman did not return. The character instead was voiced by John DiMaggio, putting on his best Goodman impression. The producers may have been hoping that no one would notice, but we did.

In fact, in 'A Tale of Two Santas', the Robot Devil also appears, but isn't voiced by the usual Dan Castellaneta. It seems he wasn't available and for just three words they thought they could get away with using Maurice LaMarche instead.