<P> Eventually, the baby arrives and the couple introduces Lady to the infant, of whom Lady grows fond . Soon after, Jim Dear and Darling leave for a trip, with their Aunt Sarah looking after the baby and the house . Aunt Sarah's two trouble - making Siamese cats, Si and Am, deliberately mess up the house and trick her into thinking that Lady attacked them . Aunt Sarah then takes Lady to a pet shop to get a muzzle . Terrified, Lady flees, only to be pursued by a trio of stray dogs . Tramp rescues her, fighting off the vicious strays, and finds a beaver at the local zoo who can remove the muzzle . Later, Tramp shows Lady how he lives "footloose and collar - free", eventually leading into a candlelit dinner at Tony's . Lady begins to fall in love with Tramp, but she chooses to return home in order to watch over the baby . Tramp offers to escort Lady back home, but when Tramp decides to chase hens around a farmyard for fun, Lady is captured by the dog catcher and brought to the local dog pound . While at the pound, the other dogs (including Peg and Bull, who have been caught) reveal to Lady that Tramp previously had multiple girlfriends and feel it is unlikely he will ever settle down . Lady is eventually claimed by Aunt Sarah, who chains her in the backyard as punishment for running away . </P> <P> Jock and Trusty visit to comfort Lady, but when Tramp arrives to apologize, Lady angrily confronts him about his past girlfriends and failure to rescue her from the pound . Tramp sadly leaves, but immediately thereafter a rat sneaks into the house . Lady sees the rat and barks frantically at it, but Aunt Sarah tells her to be quiet . Tramp hears her barking and rushes back, entering the house and cornering the rat in the nursery . Lady breaks free and rushes to the nursery, where Tramp inadvertently knocks over the baby's crib before ultimately killing the rat . The commotion alerts Aunt Sarah, who sees both dogs in the room and thinks they are trying to harm the baby . She pushes Tramp in a closet and locks Lady in the basement, then calls the pound to take Tramp away . Jim Dear and Darling return home as the dog catcher departs, and when they release Lady, she leads them to the dead rat . Overhearing everything, Jock and Trusty chase after the dog catcher's wagon . The dogs are able to track down the wagon and scare the horses, causing the wagon to crash . Jim Dear arrives in a taxi with Lady, and she reunites with Tramp, but their joy is short - lived when they find Trusty pinned underneath the wagon's wheel, motionless, with Jock howling mournfully . </P> <P> That Christmas, Tramp has been adopted into the family, and he and Lady have started their own family, with three daughters who look like Lady and a son who looks similar to Tramp . Jock comes to see the family along with Trusty, who is still alive and merely suffered a broken leg, which is still healing . Thanks to the puppies, Trusty has a fresh audience for his old stories, but he has forgotten them . </P> <Ul> <Li> Barbara Luddy as Lady, an American Cocker Spaniel . </Li> <Li> Larry Roberts as Tramp, a mongrel with a knack for dodging dog - catchers and the ability to pick locks with his nose . He calls Lady "Pidge", short for Pigeon, which he calls her due to her naivety . He never refers to himself by name, although most of the film's canine cast refer to him as the Tramp . It is not until the sequel in which any humans call him Tramp, and it is never explained why they "name" him with the very name he was known by on the streets . Tramp had other names in the film, and when asked by Lady about having a family, Tramp states that he has, "One for every day of the week . Point is, none of them have me ." Each family mentioned called him a different name (such as Mike or Fritzi). The families also had different nationalities (such as Irish or German). As he did not belong to a single family, Tramp implied that it was easier than the baby problems Lady was going through at the time . </Li> <Li> Bill Thompson as Jock, a Scottish Terrier who is one of Lady's neighbors . Thompson also voiced Joe, Tony's assistant chef; Bull, a stray male bulldog from the dog pound who speaks with a slight Cockney accent; Dachsie, a stray male dachshund at the dog pound who speaks with a German accent; and a policeman . </Li> <Li> Bill Baucom as Trusty, a bloodhound who used to track criminals with his Grandpappy, Old Reliable, until he lost his sense of smell . </Li> <Li> Verna Felton as Aunt Sarah, Darling's aunt (revealed to be the sister of Darling's mother in the Greene novelization of the film) who comes to take care of the baby when Jim Dear and Darling leave for a few days . She is a well - meaning busybody of a maiden aunt who adores her Siamese cats, but does not believe that dogs should be around babies . She blames both Lady and Tramp for the baby's crib being knocked over, not knowing that they were actually protecting the baby from a vicious rat . However, she sends a box of dog biscuits for Christmas in the final scene of the film in a presumed attempt to make amends for her mistreatment of the two dogs . </Li> <Li> George Givot as Tony, owner and chef of Tony's Italian restaurant . He and Joe both have great affection for Tramp . </Li> <Li> Lee Millar as Jim Dear, the fatherly human figure and Darling's husband . Millar also voiced the Dogcatcher . </Li> <Li> Peggy Lee as Darling, the motherly human figure and Jim Dear's wife . Lee also voiced Si and Am, Aunt's Sarah's twin Siamese cats with a knack for mischief and never - ending trouble; and Peg, a stray female Pekingese whom Lady meets at the pound (along with the other dog inmates she was put in a cage with). The names of Si and Am are a play on the country of Siam and the idea of "Siamese twins", the terminology of the time for conjoined twins . It is implied that Peg had a relationship with Tramp in the past, through the lyrics of the song she sings (He's a Tramp). Peg was formerly from the "Dog and Pony Follies" (dog and pony show); either the show ended or she was left behind . Peg has a Brooklyn Accent . </Li> <Li> Stan Freberg as the beaver, a clever, hard - working beaver at the zoo who speaks with a lisp . He gnaws off the muzzle that Aunt Sarah had placed upon Lady after Tramp realizes that the muzzle is just what the beaver needs for pulling logs . This character would later serve as the inspiration for Gopher from Winnie the Pooh and the Honey Tree (1966), down to the speech pattern (a whistling sound when he makes the "S" sound). Stan Freberg, who voiced the beaver in the film, had an extensive background in commercial and comedy recording voice overs and soundtracks . On the 2 - Disc Platinum Edition DVD he demonstrates how it was done and that a whistle was eventually used because it was hard to continue repeating the effect . </Li> <Li> Alan Reed as Boris, a stray male Borzoi from the dog pound . He speaks with a Russian accent . </Li> <Li> Thurl Ravenscroft as Al the alligator, an alligator that Tramp asks to remove the muzzle from Lady . However, he instead almost bites Lady's head off . </Li> <Li> Dallas McKennon as Toughy, a stray male mutt from the dog pound . He speaks with a slight Brooklyn accent, like Peg . McKennon also voiced Pedro, a stray male Chihuahua from the dog pound who speaks with a Mexican accent; a professor, and a laughing hyena . </Li> <Li> The Mellomen (Thurl Ravenscroft, Bill Lee, Max Smith, Bob Hamlin and Bob Stevens) as Dog Chorus </Li> </Ul>

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