Stephen Engel is an American television producer and writer. He worked on The Big Bang Theory as consulting producer and writer on season 1 and season 2. Jim Parsons has been quoted as crediting Stephen Engel for coming up with Sheldon Cooper's famous word of "Bazinga" on the series. Engel's other works on television include A.N.T. Farm, Mighty Med, The War at Home, Quintuplets, The Big House, Inside Schwartz, Just Shoot Me!, Alright Already, Mad About You and Dream On. He has also directed 3 episodes of A.N.T. Farm.