Alpha, Beta and Gamma are the secondary antagonists Villains in the 2009 Pixar film, Up. Alpha is a doberman.Beta is a rotweiler and Gamma is a bulldog. They are among Charles F. Muntz's talking dogs and the only ones with any prominent speaking lines except for Dug. Alpha's voice box is originally broken, making him sound funny, but Muntz fixes it about halfway through the film. Near the end of the film, Dug puts the "Cone of Shame" on Alpha and becomes their leader. Under Dug's orders, they turn against Muntz and side with Russell and Carl Frederickson. They are seen at the end of the film applauding at Russell's award ceremony. They are similar to Shenzi Banzai and Ed.
Alpha Alpha is a Doberman Pinscher owned by Charles F. Muntz. He is the leader of the dog pack and is usually found with his second and third in command, Beta and Gamma. Like Dug, he has a collar that allows him to talk but a malfunction makes him sound as if he'd been inhaling helium. The real voice for Alpha's translator chip is a resonant, intimidating bass. Russell notes that he likes the high-pitched voice better than the intimidating one. He has a very condescending and proud disposition, and looks down on all the other dogs in the pack. It should be noted that Alpha is the character's rank in the pack, rather than his name, as Dug became the new Alpha after defeating him. In the background, he can be seen panting with happiness once Charles says "treat" to Carl and Russell. He is voiced by Bob Peterson.
Alpha is similar to Buster from Lady and the Tramp II : Scamp's Adventure
Beta is a Rottweiler owned by Charles F. Muntz in Up. He is second-in-command, and usually seen with Alpha and Gamma. His voice is deep and accented. He is voiced by Delroy Lindo.
Beta is similar to Shere Khan from The Jungle Book
Gamma is a Bulldog owned by Charles F. Muntz in Up. He is the third-in-command and usually seen with Alpha, and Beta. He is voiced by Jerome Ranft.
Gamma is similar to Butch the Bulldog from Pluto