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Silla (shown at left in the article photo) was born with dwarfism.
Training as a circus performer, Silla came to the United States in 1955. Once in America, he toured with the famed Ringling Bros. and Barnum & Bailey Circus. His talents with horses and as an acrobat brought him to the attention of Hollywood where he relocated to work as a stuntman.
His first role in that capacity was with motion picture A Ticklish Affair. He worked as a stunt double in such hits as The Towering Inferno, and The Hindenberg.
Expanding into acting, his best known roles include the insane small Hitler from The Black Bird and Cousin Itt on the classic television series, The Addams Family.
Silla also had a large number of science fiction genre appearances, including portraying Twiki in Buck Rogers in the Twenty-Fifth Century, the child gorilla in the original Planet of the Apes, an Ewok in Return of the Jedi, and a Talosian in the original pilot for Star Trek.
Silla frequently appears in Las Vegas with his musical group, "The Original Harmonica Band."
Silla has been married to his wife Susan since 1965. They have two children, Bonnie and Michael.