Karl Champley is an Australian master builder, television personality and sometime actor. He is currently appearing on Ellen's Design Challenge. He has hosted Wasted Spaces on the American television network DIY Network. He has also presented DIY to the Rescue (2003) and DIY Inside: The Home Builder's Show (2005) on the same channel.A qualified tradesman, contractor and builder, Champley has been involved in the building trade since the 1980s.