Grand Unifying Guesses/Robin Williams

The following people are avatars of Robin Williams, AKA God

 * Mork, AKA Jesus
 * Bono
 * The Doctor
 * AKA Kyon
 * Captain Jack Harkness
 * And because Calvin becomes Jeremy Duncan, who becomes Frazz, who becomes Ed Norton's character in Fight Club, and he becomes Jack, all of the above people are also avatars of Robin Williams
 * My Pet Monster. Seriously, look at the thing.
 * Headmaster Cid.
 * Deadpool