The Room's Greg Sestero, best friend extraordinaire

To look at Greg Sestero’s IMDB page, you’d hardly notice the 31-year-old was in 2003’s The Room; it’s no more than an understated blip on his small list of roles, and the film receives no mention in his fairly extensive biography. But Sestero is a large part of what makes the cult phenomenon such a hit: He plays Mark, the two-timing best friend of Johnny (the clay-like Tommy Wiseau, who spoke to The A.V. Club here), who’s engaged to Mark’s lover Lisa (Juliette Danielle, who can’t be troubled to dye her hair and eyebrows). Mark says Johnny is his best friend at least 100,000 times, has a bad habit of saying hi to everyone always, and suffers from seemingly random outbursts of rage. He makes this cognitively fuzzy, unfortunate film such a fascinating circus. In anticipation of two midnight screenings at Landmark E Street Cinema, The A.V. Club called Sestero to discuss The Room’s lack of clarity, behind-the-scenes drama, and his friendship with Wiseau—though he wouldn't say, “best.”
A.V. Club: You’ve attended numerous screenings of The Room in L.A. What’s the experience been like for you to watch other people watch the film over and over?
Greg Sestero: Well, originally my favorite part, when I’d gone to the earlier screenings in 2004, was the stuff that people came up with [to yell]. Tommy showed me the script a long time ago, and I was laughing. Tommy comes from a different way of expressing and talking, and I think that’s the way it came across. During the auditions, too, you could see that it was going to be a lot of fun; I just didn’t know if it would actually be seen by people.
AVC: It’s interesting that you thought it would be a fun movie, because the script is really dark: infidelity, drugs, cancer, etc.
GS: You have these dark subjects, but they’re surrounded by these random scenes that are rather funny—like the football scene in the alley. He’s finding out that his fiancée’s cheating on him, and then he’s in an alley talking about football and throwing it three feet apart [from the rest of the cast]. I think that’s why people get totally confused.
A rare angry moment from Mark:
AVC: What was your experience with Tommy before the film?
GS: I was in an acting class, and he went up onstage and was, just, so entertaining. The whole class was laughing and chanting his name, and he was getting into it with the teacher and I thought, “This guy’s kind of cool.” I thought, wow, next time it comes up—picking a scene partner—I want to work with him. And we just clicked. I mean, we rehearsed these scenes and everyone in acting class loved them. They thought we were a great pair. He told me, “I have a movie I’d love to make, and I think you’d be great, and I have a part for you.” We randomly kept in touch, and a few years later he said, “I’m going to start doing this movie. Would you like to jump on board?” It’s kind of funny. You meet someone in a class and start doing a movie together.