Hector the Cat eight of his nine lives due to "ignorance of road safety practices". This was followed by a short instructional film. In subsequent years other characters were introduced in calendars, instructional films, and comic books including Millie, his girlfriend (1973), Uncle Tom (1974), Hector and Millie's three kittens (1975) and his space friend Ding Dong (1982). A study in 1978 found that, although children enjoyed the characters and stories, the material had a number of inadequacies. It stressed that road safety research findings and child development theory would need to be considered for any future development. The character is currently used
Hector the Bulldog leading a street gang composed of dogs in a Friz Freleng-directed short; this is also the only short where the dog has numerous speaking lines. After those shorts, Hector is a minor player in several Tweety and Sylvester cartoons directed by Freleng in 1948 and throughout the 1950s. His usual role is to protect Tweety from Sylvester, usually at Granny’s request. He typically does this through brute strength alone, but some cartoons have him outsmart the cat, such as 1954's "Satan's Waitin'", wherein Hector convinces Sylvester to use up his nine lives by pursuing Tweety through a series of extremely