George Cat is the musophobic and identical cousin of Tom. George's appearance is identical to his cousin, except for the fact that he does talk and that he, rather ironically, has a fear of mice, making him a scaredy-cat. George's only appearance so far was in Timid Tabby.

Timothy "Tim" Cat is the twin brother of the young Tom in Tom and Jerry Kids. He appeared in the episode Fraidy Cat. Thomasina Cat is the mother of Baby Booties and the younger sister of Tom Cat. She first and only appears in the episode Babysitting Blues. She is voiced by Cathy Weseluck. Tom's brother is a brown cat.

Muscles is Jerry's cousin and a mouse with incredible strength. In Jerry's Cousin (1951), Muscles appears to hate cats, including Tom. In Haunted Mouse, another mouse named Merlin, who is also a cousin of Jerry's, appears as a wizard with magical

Timid Tabby: Directed by Joseph Barbera, William Hanna. With William Hanna, Bill Thompson. Tom's fraidy cat cousin comes for a visit and Jerry takes advantage of the cowardly feline.

George is Tom's cousin. George looks identical to Tom except that he can talk and that he, rather ironically, has a fear of mice. George's only appearance so far was in the 1957 short, Timid Tabby. Jerry couldn't tell the difference between him and Tom because of their similarities. This makes...