Jonathan "John" Hansen, also known as John 'Nancy' Hansen or John A. Hansen Jr., voiced Mr. Slave, the former boyfriend of and assistant to Mr. Garrison. He also voiced the Busy Beaver Truck Driver in "Butters' Very Own Episode", John Travolta in "Trapped in the Closet", Anthony Webster in "Fort Collins" along with singing Take on Me in the credits in "Asspen".
In addition to voicing Mr. Slave, he was also on the show's production team as a post-production supervisor. Currently, he is on the team as a production supervisor for more recent episodes.
John Hansen has been suggested to play 27 roles. Click below to see other actors suggested for each role, and vote for who you think would play the role best.
