Okay, I did a glorified linkpost this week to the Martian Manhunter Fotolog, which reader LissBirds followed to find information on a segment from Cartoon Network's [adult swim] series Robot Chicken. From the second aired episode (12/14/08) of the 2008-2009 fourth season, titled "They Took My Thumbs," comes the segment "Bring a Sidekick to Work Day."
Segment Summary: The Justice League takes a pause from crimefighting for an afternoon of sexual innuendo, pranks, and boy-hunting.
Cast: Sebastian Bach (Martian Manhunter), Alex Borstein (Wonder Woman), Clare Grant (Aqualad), Seth Green (Aquaman, Batman, Robin, Kid Flash, Martian Boyhunter), Breckin Meyer (Speedy), Matthew Senreich (Flash), Milo Ventimiglia (Green Arrow)
Characters: Wonder Woman, Speedy, Green Arrow, Flash, Martian Manhunter, Aqualad, Aquaman, Previous Aqualad, Robin, Batman, Wonder Girl, Kid Flash, Martian Boyhunter
Presumably, that means we can add former Skid Row frontman, Broadway actor, and occasional Gilmore Girls cast member Sebastian Bach to the expanding list of actors to play J'onn J'onzz. Gee, and I thought that guy from Mad Max was a curious choice...