T-bone is Jackie Condon's dog. In The Champeen!, he fights Jack Davis's dog. He's possibly the same dog seen with Jackie and Joe Cobb in Back Stage. He also follows the gang on a train ride to San Francisco in A Pleasant Journey. He's possibly the dog who destroys the gang's football in No Noise.
T-bone is possibly litter mates with Bonzo, Bill and Joe; they were all played by the same dog. It is unsure how many of this pooch's appearances belong to which roles. Maltin and Bann confuse him with Pal.