Monty Monster is a large orange monster and the biggest member of the "Mighty Monsters". His appearance bears a considerable resemblance to Sesame Street's Frazzle. He is seen in the book Grover's Bad, Awful Day. Monty tells Grover that he is too little to play tackle football with the other monsters; however, later that day, while enjoying a drink at Hooper's Store, he invites Grover to play tickle football with the gang the next day.