Full name is Silas Weir Mitchell Neilson. He was named after an ancestor, the 19th century physician and author, Silas Weir Mitchell.
He spent some time after graduation in New York acting in minor theatre productions, then attended a three-year theatre program at the University of California, San Diego, where he earned an M.F.A. degree in 1995.
A 1991 graduate of Brown University in Rhode Island with majors in theatre and religion.
Graduated in 1987 from St. Paul's School, a college preparatory boarding school in Concord, New Hampshire.
Title of Masters thesis - "What We Make Is Not Ours", (MFA, 1995, University of California, San Diego).
Founder and president of the production company, Phantom Limbs Plays & Pictures.
Has three sisters and one brother.
His blue Doberman is named Atticus.
Grew up in Montgomery County, Pennsylvania, just outside of Philadelphia.
I play outsiders. That's just the way it's gone for me, and I think that's fantastic. I like it because I've always been interested in how the other guy thinks. I want to know what's going on in his head. You see people on the street, talking to themselves, and you're like, "What are they talking about?" I'm interested in that. Even people that are speaking in tongues are interesting. What's going on there? What's channeling through there? I'm definitely interested in that. When I was in college, I said, "In Sam Shepard's world, I am the main guy. But, in the normal world, I am the other guy." It requires a certain kind of world for me to live in, as the main guy. The fun thing about Monroe is that he could really go anywhere. He is a complex dude.
The way I tend to look at what goes on in that world, not to sound high-faluting, forgive me, but it's sort of psycho-mythological in a lot of ways. I think a lot of mythology is meaningful to us as humans because it puts psychological forms in a kind of an organization that we can understand. -On studying religion for roles like Monroe in Grimm (2011).
[Talking about his wife] We have a three-week rule. Every three weeks, I either find time to go home to L.A., or she comes up here.