Mark Gravas (born 29 September 1966) is an Australian animator, director and producer. He is the creator/director of Yakkity Yak (2002/2003), an Australian/Canadian co-production. Mark co-owns Sydney based media production company Kapow Pictures with his partner Sandra Walters.Mark Gravas directed the 2005 animated film Here Comes Peter Cottontail: The Movie, He also designed and directed the 2006 Cartoon Network production of Casper's Scare School. Gravas also co-owns the creative company Kapow Pictures, based in Sydney, Australia.