Graduated in 1997 from Brown University with degrees in mathematics and
computer science and a minor in theatre arts.
One of his hobbies is Kendo (Japanese sword fighting).
When he was 12, he was on the cover of the August 31, 1987 issue of
Time magazine titled "Those Asian-American Whiz Kids".
Graduated from Harvard-Westlake School (1992).
At age six, he moved to Los Angeles, California, USA, where he still
resides.
Name is pronounced as "mah-see".
His character on Heroes (2006), Hiro, is Tyra Banks's favorite character on her
favorite show.
Arrived in Singapore to promote Season 2 of Heroes (2006), as part of the World Tour [31 August 2007]. (August 2007)
Both Greg Grunberg and Masi Oka were in 2002's "Austin Powers in Goldmember" and never shared any scenes together. That would change in 2006 when they both went on to star in their respective roles in "Heroes".