Doc is an old Saint Bernard who appears in the first film. Doc is the kind, old St. Bernard that can always be found in the boiler room. He's the voice of wisdom and somewhat of a figure head. Unlike the other dogs, he seems to have tolerance for Balto. He first appears while telling the other dogs of Nome that Steele and his team had missed their second checkpoint and had become lost. Later when the other dogs learned that Steele had lied to them about Balto and the team being frozen to death in the storm, he turned his back on him. Doc later appears in the third film during the E.D.A.S. (Emergency Dog Alert System). He is voiced by Donald Sinden.
- He's the tallest dog in Nome