created by Kevin Diller and Justin Lowe created by Kevin Diller & Justin Lowe created by Neville Astley and Mark Baker created by Neville Astley and Mark Baker. created by Helen Nicoll and Jan Pienkowski. created by Steven Hillenburg. created by Jerry Siegel and Joe Shusterc created by Trevor Ricketts and Christopher O'Hare. created by Geoff Blackwell and Ruth Hobday