Is it ever difficult working with celebrities on "Robot Chicken" who have never done voice-over work before? - Will, Grand Rapids, MI

Every actor is different and has a different process. I try to figure out what their process is, and how to best get what we're looking for from them. — Seth

I've seen "Party Monster" about 20 times, and will always put it as one of the best movies I have ever seen. Starring with Macaulay Culkin, did you guys become friends? - Alyssa, Bayside, WI

I love Mack, and consider him a close friend. He's insanely talented, and one of the most well-adjusted people I've ever met. — Seth

How did you get Zac Efron to appear on "Robot Chicken" (twice)? - Arthur, Southington, CT

We asked. I met him on the set of "17 Again," where he mentioned his girlfriend had turned him onto it. He's unbelievably talented and we were thrilled he came on. — Seth

What is your favorite thing to do to get away from all the hustle and bustle of what you do for a living? - Katrina, Honolulu, HI

I'm a big fan of sitting still. — Seth

I always wondered: in "Josie and the Pussycats," are you, Breckin Meyer, Donald Fiason and Alexander Martin actually singing? - Raven, Edmonton, AB

Really? Did that sound like it could have come from me? Thank you - no, we were lip syncing to the sweet stylings of Babyface's picks. — Seth