I just try to try to keep an attitude that I don't know what I'm doing. Not to the point where I'm beating myself up, but I just go in thinking that I have a lot to learn. And I hope I still have that attitude 30 years from now.

"We are very excited to bring 'Robotech' to the big screen" Maguire said. During many of his auditions Maguire found himself auditioning for roles opposite another rising actor Leonardo DiCaprio. Personal life
Maguire has been a vegetarian since 1992 and in 2009 became a vegan.

He began his career in the late 1980s. He has been nominated for Screen Actors Guild and Golden Globe Awards and received two Saturn Awards including one for Best Actor.