Michael Tremain Sinterniklaas (born August 13, 1972) is a French American voice actor, dubbing director, and founder of NYAV Post, a dubbing studio in New York City. Sinterniklaas sometimes does work under the name Michael Tremain as well.
He was born in France, and moved to the United States when he was 10 years old. Sinterniklaas graduated from High School of the Performing Arts in New York City, and attended college in North Carolina where he did work at both Southwynde and Coastal Carolina Studios. His current most popular castings as a voice actor are Leonardo in the 2003 version of Teenage Mutant Ninja Turtles and Dean Venture (and other small parts) in the Adult Swim cartoon The Venture Bros., Leo in Fullmetal Alchemist, Mikey Simon in the Nicktoons Network series Kappa Mikey, and Dark Magician in Yu-Gi-Oh!. In the past, Sinterniklaas has dubbed such shows as Twin Signal, Night Hunters, Magic User's Club, and Berserk. He was the voice director on the Animation Collective Nicktoon Three Delivery. Recently, he started doing voice work in the West coast more frequently.
He was the voice director of Slayers REVOLUTION and Slayers EVOLUTION-R. He also replaced David Moo as the voice actor for Xellos. His voice acting in anime goes back to when anime first started being imported to the USA, having voiced Ataru Moroboshi in the canceled English dub of Rumiko Takahashi's Urusei Yatsura. He is well known as Gai Shishio in Gaogaigar: King of Braves and Satoshi Osugi in Eden of the East, as well as Nnoitra Jiruga and Luppi in Bleach.