Tramp is introduced as a wise-cracking, stray mutt who admires the life of a rogue loner. Often seen alone, the Tramp doesn't appear to have family or friends outside of the local mutts he runs into from time to time, such as Peg and Bull, or Tony and Joe; two Italian restaurant owners. Nevertheless, he lives his life with a care-free aura and rascally-fun nature. While out and about in New England, where he regularly rests and feast at various restaurants, he overhears Jock and Trustyattempting to explain what a baby is to Lady. Tramp gives his opinion on the matter, which is somewhat negative. Annoyed with Tramp, Jock and Trusty order him out of the yard.
Later on, Tramp rescues Lady, whom he calls "Pidge" from a pack of alley dogs. Lady reveals that she has been muzzled, and so Tramp attempts to help her take it off. He takes her to the local zoo, when he is able to manipulate a beaver into removing the device, by claiming it will help the beaver haul logs. That night, Tramp takes Lady out for a night on the town. he reveals that he goes to different houses each for scraps, and that he has a different name at every one of them. That night, he takes Lady to a small Italian restaurant, where they are served spaghetti and meatballs by the owner, Tony. Tramp takes Lady home, but on the way back, she is picked up bythe dogcatcher.
After he finds Lady, who has been released from the pound, he attempts to apologize. However, an angered Lady confronts him on rumors she heard at the pound regarding Tramp's multiple past girlfriends. She orders him to leave, which Tramp was very sad that he'll never be a house dog. However, he soon hears Lady barking furiously and rushes back. Lady reveals that a rat has gotten into the baby's room, and so Tramp rushes to stop it. He is able to successfully kill the rat, but is found by Aunt Sarah. She calls the dogcatcher to take him to the pound. However, Tramp is released due to the combined efforts of Jock and Trusty, who had overheard the humans talking after they discovered that rat that Tramp had killed.
The next Christmas, it's revealed that Tramp has been made a member of the family by Jim Dear and Darling. He has become the father of four puppies: three girls that look identical Lady and a son that looks identical to him. Tramp was happy for being a house dog instead of being a stray.
- He was voiced by the late Larry Roberts in his debut, Lady and The Tramp.