Speaking of second seasons, the doctor is in! Nick at Nite will premiere the second season of Glenn Martin, DDS on Friday, June 11th, at 10:30pm. The stop motion animated series has a lot planned for its new episodes, including a whole list of special guest stars. In addition to the regulars Kevin Nealon, Catherine O’Hara, and Judy Greer the claymation toon will be showcasing (deep breath!) Mel Brooks, Fergie, Bret Michaels, Kristen Bell, Sean Hayes, Jimmy Kimmel, John Corbett, Fran Drescher, Bradley Witford, Cheri Oteri, MC Hammer, Jason Alexander, Howie Mandel, George Takei, Don Johnson, Ashley Tisdale, Ty Burrell, Jim Parsons, Bryan Cranston, Gabourey Sibide, Ellen Page, and recent SNL host Betty White.