My Gym Partner's a Monkey/Regular Show

Cast

 * Adam as Mordecai
 * Jake as Rigby
 * Principal Pixiefrog as Benson
 * Slips as Pops
 * Windsor as Skips
 * Bull as Muscle Man
 * Henry as High-Five Ghost
 * Ingrid as Margaret
 * Lupe as Eileen
 * Phineas as Garrett Bobby Ferguson
 * Margaret, Joanie, and LaTanya as Starla
 * Mrs. Warthog as Toothpick Sally
 * Kerry as CJ