Lyle Lettau

Lyle Lettau (formerly Lyle O'Donohoe) was the voice actor of Brain on from season 12 to season 15, and in  season 3.

Trivia

 * Lettau also starred as Tristan Milligan on the show, Degrassi.
 * He is a big fan of Lady Gaga.
 * One of his favorite colors is Blue.
 * His last name was originally O'Donohoe, but in honor of his grandmother, he decided to change it to Lettau.
 * Lettau is best friends with his Degrassi co-star Alex Steele.
 * In November 2013, he moved to Los Angeles.