as Dad
as Greg(2 eps)
as Manny
as Mr. Johnson(1 ep)
as Robert the Cop
as Science Film Voice (voice)
as Well-Dressed Man (voice)(1 ep)
as (voice)
as Hats
as Det. Tom
as Det. Tom
as Principal Blackman (as Gregory Holliman)
as Onyx Blackman(30 eps)
as Man #2
as Tenement Man
as Skating Orderly