Greg Hollimon

as Dad

as Greg (2 episodes)

as Manny

as Mr. Johnson (1 episode)

as Robert the Cop

as Science Film Voice (voice)

as Well-Dressed Man (voice) (1 episode)

as (voice)

as Hats

as Det. Tom

as Det. Tom

as Principal Blackman (as Gregory Holliman)

as Onyx Blackman (30 episodes)

as Man #2

as Tenement Man

as Skating Orderly