Koala Man cast is including:
Michael Cusack as Koala Man (voice) (8 episodes), Sarah Snook as Vicky (voice) (8 episodes), Demi Lardner as Alison (voice) (8 episodes), Jarrad Wright as Spider / Maxwell (voice) (8 episodes), Hugh Jackman as Big Greg (voice) (8 episodes), Justin Roiland as Chad Wagon (voice) (1 episode), Aaron Chen as Dennis (1 episode), Hugo Weaving as King Emudeus (1 episode), Miranda Otto as Mindy (1 episode)