An MIT grad, Masamune played "Shredder" in Michael Bay's "Teenage Mutant Ninja Turtles" (2014). He has had lead stage roles directed by Tony Award Winner Mary Zimmerman (Goodman Theatre) and Tony Award Winner Dan Sullivan (Williamstown Theatre Festival). He has worked with playwrights A.R. Gurney (Williamstown Theatre Festival) and Tony Award. Nominee Irene Mecchi (American Conservatory Theatre). He also was a member of the nationally recognized troupe, Theatre of Yugen, performing classical Japanese theatre (Noh/Kyogen).
He starts off the Christopher Nolan film "Inception" with the first line of the movie playing opposite Leo DiCaprio and Ken Watanabe.
He also played "Haruto Yakimura" in Marvel's Agents of S,H.I.E.L.D.
He appears in the role of "Martin Takagi" as in the upcoming paranormal Thriller feature "Chatter".
He is also the voice of "Kira" in an episode of Dreamworks/Nickelodeon "Kung Fu Panda - Legends of Awesomeness".
He is the voice of "Sensei" in Disney's Club Penguin online shorts.
He also appeared in a lead role (Ozu) in the SyFy channel original movie, "Warbirds", and will also appear in the upcoming feature film "Baby-O" directed by Charlie Matthau. He has made guest appearances on several TV shows which include "No Ordinary Family", "iCarly",Young and the Restless (recurring), "Bigshots","Heroes" (recurring as Mr. Egami), "24", "Without a Trace","Chicago Hope", "Providence", "The Practice" and "Mad About You","The Cape" (where he first worked with Emmy award winning director Jon Cassar). His first gig was on the film "Pacific Heights" directed by the late Oscar winner, John Schlesinger.
His father, Satoru Masamune was a top research professor at MIT, and his grandfather Testuo Nozoe, too was a world-renown scientist (in Japan).
Other notable ancestors include Hakucho Masamune (novelist/playwright), Atsuo Masamune (poet/lit scholar), Tokusaburo Masamune (painter), Isao Masamune (banker-former president of Industrial Bank of Japan) and Juichi Nozoe (politician-House of Representatives in Japan)
During college, Tohoru also was involved in the contemporary art world, working on technical crews for internationally renown installations artists, Nam Jun Paik, Brian Eno, and Bill Viola.
He was born in Madison, Wisconsin, and grew up in Edmonton, Alberta, Canada. His family eventually settled in Newton (suburb of Boston), Massachusetts.
He has been a principal in numerous national commercial campaigns including Mercedes Benz, Coor's Light, Volvo, Yo-Plus (Yoplait), Nissan,Maxima, Ikea, Ford Trucks, Subaru, Oldsmobile, Northwest Airlines. He has done 2 commercials with director, Zack Snyder ("300", "Watchmen").
He enjoys playing Ice Hockey and jamming on his Alesis keyboard.