Actor Seth Green has largely stuck to animated comedy lately, playing Chris Griffin in Family Guy, providing motion capture for Mars Needs Moms, and writing for, doing voices for, and producing his stop-motion Adult Swim show, Robot Chicken.

Having more than proven himself in comedy, Green’s gearing up to give drama a try. The Hollywood Reporter confirms the actor has been cast opposite Lou Taylor Pucci (Thumbsucker) in The Story of Luke, a film about an autistic man (Pucci) trying to find a job and a girlfriend. Green stars as Zach, a character who “plays an instrumental role in coaching Luke in his journey.”

The Story of Luke was written by Alonso Mayo based on his own documentary, Just Like Anyone, about families of children with developmental disabilities at his mother’s education and rehabilitation school in Peru. It will be Mayo’s fictional directorial debut.

Cary Elwes and True Blood‘s Kristin Bauer also star. The film begins shooting this month in Ontario.

With the recent announcement of a planned fourth Austin Powers film, we could be hearing a lot more about Green in the coming months. At the conclusion of Goldmember, the series ended with Austin Powers and Dr. Evil (both Mike Meyers) teaming up, leaving Green’s character, Scott, bald, cackling, and vowing revenge. If and when a fourth movie comes to fruition, it’s safe to assume Green will reprise the role.

Green will also join another Buffy the Vampire Slayer alum, Michelle Trachtenberg, in Sexy Evil Genius, an upcoming indie dramady about a group of strangers lured to a downtown Los Angeles bar by their mutual ex-girlfriend (played by Battlestar Galactica‘s Katee Sackhoff). That movie, which went into production in June, is set for a 2013 release.

Which of Green’s upcoming projects do you find most promising?