Beta and Gamma

Beta and Gamma are former antagonists, turned later into supportive protagonists, in the Pixar's animated film, Up. A pair of dogs, which can speak and communicate through their recording collar, serving as adjutants to their superior, Alpha, Beta and Gamma appear in the villains tournaments, whenever their boss, Charles F. Muntz, and their superior, Alpha, sends them on various missions, either to find the giant bird, Kevin, or assist their master in his battles against his adversaries.