Jock

Jock is a Scottish Terrier who was the triagonist in Lady and the Tramp and its sequel. He was voiced by Bill Thompson and currently by Jeff Bennett. His singing voice was by Sterling Holloway. He alongside Trusty appaer in The Lady and the Tramp II: Scamp's Adventure as the uncles of Annette,Collette,Danielle,Scamp,and Angel (in-law).

Personality
Despite being a bit grumpy at times, Jock is extremely kind and sweet. He is a loyal friend and protective as well. Jock seems to have a hatred of mongrels and strays such as Tramp before he became a member of the family. Jock is also honest not denying the fact that he was wrong about Tramp and risked his life to save him. Jock is mature because he knows the rules of everything.

Trivia

 * Jock is played by the late actor Bill Thompson who did Mr. Smee who was the secondary antagonist of Peter Pan.