Ass-kickin’ Summer Glau (“Terminator: The Sarah Connor Chronicles” robot hottie) is the first fem to join the cast of Joe Lynch’s The Knights of Badassdom, reports Bleeding Cool. She joins Ryan Kwanten, Steve Zahn, Peter Dinklage, and Danny Pudi, all who joined the cast this week. Penned by Kevin Dreyfuss and Matt Wall, the black comedy follows a group of costumed LARPers (Live Action Role Players) who accidentally release a real-life Heavy Metal demon. The demons are going to be created by Spectral Motion, previously responsible for various Hellboy hellions and several Last Stand X-Men. Joe Lynch previously directed Wrong Turn 2: Dead End. The black comedy horror begins lensing this July in Spokane, WA.