Robot Chicken Robot Chicken Christmas Special: X-Mas United (2001– ) Online
The minds behind Robot Chicken expose a deep dark family secret, and we learn that nothing will ever be the same when the Robot Chicken Nerd discovers his true father is...Father Christmas! And then a lot of people die.
| Episode cast overview: | |||
 | Seth Green | - | The Nerd / Santa Claus / Fred Claus (voice) |
 | Jim Hanks | - | Polar Express Conductor (voice) |
 | Scott Porter | - | (voice) |
 | Michaela Watkins | - | Nerd's Mom (voice) |
 | Henry Winkler | - | Nerd's Dad (voice) |
 | James Wolk | - | (voice) |
 | Matthew Senreich | - | (voice) |
The episode won an Emmy Award for Outstanding Short-Format Animated Program.