Timothy Britten Parker

as Self

as Leo (4 episodes)

as Ray Berkowitz (1 episode)

as Marshall Fine

as Man at Party #4

as Researcher

as M.C. / King of Comedy

as Forensic Technician Hoeck (2 episodes), as Forensic Technician Borak (2 episodes), as Forensics Expert (1 episode), as Meade (1 episode)