Alpha

Alpha is the leader of Charles Muntz's pack of dogs he is a doberman pinscher his two assistants are Beta and Gamma a rottweiler and bulldog respectively, at some point in the movie his collar that enabled him to speak malfunctioned causing him to speak in a high squeaky voice which the others constantly make fun of, he is also the most serious and loyal to Muntz, he is first encountered after he recieves a call from Dug the lowest ranked dog in the pack who makes fun of his squeaky voice and reports that he has found the bird Muntz is looking for and he leads Carl and Russel into Muntz's blimp who fixes Alpha's collar so he now has a deep intimidating voice, after figuring out they have the bird in their custody Muntz sends the dogs after them during the chase Dug tries to save them but Alpha throws him off a cliff but he manages to grab onto the edge, he bites Kevin's (the bird) leg and injures her but in the process he and the rest of the dogs are knocked off the cliff and into a river which they survive, later Muntz manages to capture Kevin with a net and Alpha and Beta drag her into the blimp, in the attempt to rescue Kevin Dug sneaks aboard the blimp with Carl and fights with Alpha whom he ends up defeating when his head gets caught in the steering wheel which in the process breaks his collar permanently retaining the squeaky voice and after freeing him Dug places the cone of shame on him and Dug is appointed the new pack leader, after Muntz's death Alpha and the rest of the dogs join up with Carl and Russel and are sent to a retirement center to entertain the senior citizens.