Renaldo Santoni was an American film, television and voice actor. He was noted for playing Poppie on the television sitcom Seinfeld, Tony Gonzales in Cobra, and Chico González in Dirty Harry.

Cobra is a 1986 American action film directed by George P. Cosmatos and written by Sylvester Stallone, who also stars in the titular role. The film co-stars Reni Santoni, Brigitte Nielsen and Andrew Robinson. Loosely based on the novel A Running Duck by Paula Gosling, Cobra follows police detective Marion "Cobra" Cobretti as he investigates a string of violent crimes while also protecting a witness targeted by the perpetrators.