The character was originally introduced in episode 18 of season 1 ("Mr. Purr-fect") and credited as "Lambda Sig Brother," but was officially given the name Tim in episode 8 of season 3 ("Fight the Power").
Appearances
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Guest cast, played by Chad Michael Collins
- Episode 1x18: Mr. Purr-fect (May 12, 2008)
- Episode 3x08: Fight The Power (Oct 19, 2009)