Playbill.com wondered what has the The Book of Mormon cast laughing off stage? Since the musical is written by Emmy-winning "South Park" creators Trey Parker and Matt Stone, along with Tony-winning Avenue Q songwriter Robert Lopez, Playbill.com decided to ask the Book of Mormon troupers which "South Park" episodes and characters were their favorites.

Tony Award nominee Josh Gad, The Book of Mormon's inept Elder with a heart of gold and lover of all things sci-fi.

Favorite Episode: "Whale Whores"
There is something so absurdly brilliant about the Japanese being so vengeful and vicious about their desire to wage a bloody war against dolphins and whales that leads to one of the funniest reveals I have ever seen. When we finally learn why the Japanese despise dolphins and whales, (because they were told by the American government that both animals were responsible for flying the Enola Gay), there is nothing to do but helplessly wipe away the tears of laughter at the insanity of the explanation. After all, who other than Trey and Matt can make something as awful as whale and dolphin massacre, so convincingly funny, by giving the Japanese such a crazy motive for going after them.

Favorite Character: While I am a staunch Cartman fan in general, this episode's best character was the sloppy Captain of the ship based on the Whale Wars captain. When he gets harpooned, I genuinely convulsed.