Chef Albéar was a French-themed animatronic bear mascot for a failed Albearto's franchise: La Petite Albéar. He is one of four animatronics granted sentience by Albearto to aid him in his uprising.
Chef Albéar was aided by his fellow robotic mascot Otto von Bearto in terrorizing the visitors of Albeartoland until Leonardo and Michelangelo knocked them off their feet.
Later, when the Turtles gave their horrible stage performance to the robots of Albeartoland, he and Otto choose to destroy themselves rather than continue to listening to the awful singing by riding off the tracks of a roller coaster.