is a clownology professor at Arlen Community College.
Professor Twilley teaches clowning classes. He believes that clowns are not born but made, right in his class. He is imperious and pedantic in manner, expressing humor in a algebra-like formula. His teaching is firmly grounded in the “the ha-guffaw-aw-ha,ha formula” which is a "flow chart of funny.” He assigns Bobby supplemental reading including “Aristotle’s dictum” and eventually becomes impressed with Bobby, moving him up to the study of commedia dell’arte. He encourages Bobby to preform a routine for the Tom Landry Middle School Talent Show, complete with 16th century-style costuming.
A Portrait of the Artist as a Young Clown
In the episode A Portrait of the Artist as a Young Clown, Bobby enrolls in clowning classes at Arlen Community College where he meets Professor Twilley, the clownology professor who begins training Bobby as well as other classmates.