Felix Anthony Silla, also credited as Felix Cilla, is an Italian-born American film and television actor and stuntman, best known for his role as the costumed character of "Cousin Itt" on television's The Addams Family, with the voice usually provided by Anthony Magro . Silla also appeared in many other classic character roles.Biography and career overviewSilla was born in a small village outside Rome, Italy. Silla trained as a circus performer, came to the United States in 1955, and toured with the Ringling Bros. and Barnum & Bailey Circus. His multiple talents as a bareback rider, trapeze artist and tumbler brought him to Hollywood, where he became a stuntman, starting with the Gig Young-Shirley Jones vehicle, A Ticklish Affair. His best-known roles are Litvak, the maniacal, miniature Hitler who menaces George Segal in The Black Bird (his favorite role), and Cousin Itt on the TV show, The Addams Family. He was also responsible for the physical performance of the robot Twiki in the TV series Buck Rogers in the 25th Century, a role for which the voice was supplied by Mel Blanc or Bob Elyea. In part due to his short stature of 1.19 m (3 ft 11 in), he has often doubled for children in such movies as The Towering Inferno, The Hindenburg, and Battlestar Galactica. Between movies, he frequently appears in Las Vegas and Reno night clubs with his own musical combo, "The Original Harmonica Band".