Sir Don Señor Citizen is a character who appeared in the Smurfs cartoon episode "Papa Loses His Patience". He was the elderly master (or trainer) of the bullfighter El Gargo, and probably had been a great bullfighter himself in his younger days. However, he was very disappointed in El Gargo as his student because of his many losses in bullfighting, which he always blamed on El Gargo's lack of patience. But when El Gargo magically received Papa Smurf's patience thanks to a miscalculation on Brainy Smurf's part, and became a big success in bullfighting, Sir Don was very surprised and impressed. But he didn't leave a comment when El Gargo was defeated because of Handy Smurf's invention, the Bull-O-Matic, which was used to transfer back Papa Smurf's patience.