Khan! You and your chest will be greatly missed.
Other than portraying the infamous Khan Noonien Singh, both in the Star Trek TV series and the second film, Montalbán was also known for playing Mr. Roarke on the TV series Fantasy Island, along with his mini-sidekick, Tattoo (Hervé Villechaize). He was also very famous for his unmistakable voice, often providing voices for such shows a Dora the Explorer, Family Guy, Freakazoid!, and Kim Possible, among many others.
He was 88.