Andrew was actually created at the last minute by the show’s writers, as a replacement for Tucker Wells [who summoned hellhounds to attack the Prom in the Season Three episode “The Prom”]. Originally, the writers wanted Brad Kane to reprise the character who would be the leader of the “Trio” with Jonathan Levinson and Warren Mears as his flunkies, but the two sides failed to come to an agreement regarding a contract, resulting in Tom Lenk being cast as Tucker’s younger brother.