He starred in the television program, Fantasy Island from 1978 to 1984. For a time the program was one of the most popular on television. His character, Mr. Roarke, and his sidekick Tattoo, were pop icons.
Mr. Montalban played an entirely different role by appearing as Khan in Star Trek: The Wrath of Khan, which he reprised from a 1967 episode of Star Trek called Space Seed. He has appeared in many diverse films including The Naked Gun and two films from the Planet of the Apes series. He also appeared in the second Spy Kids film in 2002 and the third one in 2003.
Over the course of his long career, he has played roles or guest starred in dozens of television series.
He is married to Georgiana Young (née Georgiana Belzer), youngest half-sister of late star Loretta Young.
For a complete filmography, see http://us.imdb.com/Name?Montalban,+Ricardo