Carlos Alazraqui

Lazlo / Clam / Hippo / Bear (voice)

Tom Kenny

Lumpus / Slinkman / Beaver (voice)

Jeff Bennett

Raj / Samson / Hoo Ha / Walrus (voice)

Mr. Lawrence

Edward / Ping Pong / Dave (voice)

Steve Little

Chip / Skip / Louis Lemming / Larry Lemming (voice)

Fred Tatasciore

Big Bear (voice)