Tripod

Tripod is one of the many puppies in the 101 Dalmatians franchise.

101 Dalmatians: The Series
Tripod is the only main or recurring puppy in the series who has not been in the movies or the original book. According to the episode, "Dalmatian Vacation Part One: Road Warriors", he is not one of Pongo and Perdita's original fifteen puppies, and was one of the adopted eighty-four. Despite having three legs, he is very athletic, and is considerably moreso than the other dalmatians. He is Lt. Pug's favorite member of the Bark Brigade. Lucky sees him as his rival until the episode "Lucky All-Star", after they help Roger pull his car out of the mud. After that, he usually hangs around Lucky and the other pups. There has never been an explination behind his hidden leg, though it's suggested that he either was in an accident and it was amputated, or it was a birth defect.