<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 . </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 - Australian 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 sister who comes to take care of the baby when Jim Dear and Darling leave for a few days . Aunt Sarah is strict; she does not understand dogs and thinks they are trouble . 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 in the final scene of the film in a presumed attempt to make amends for her mistreatment of the two dogs . </Li>

Voice of trusty in lady and the tramp