Pongo is the male protagonist of 101 Dalmatians. He is a Dalmatian dog who is the pet of Roger Radcliffe, mate of Perdita, father of 15 Dalmatian puppies, and adoptive father of 84 more puppies rescued from Cruella De Vil.

Much like his owner, Roger, Pongo is laid-back, playful, and a tad goofy. Aside from this, he is extremely loyal, and actually took note of Roger's loneliness as a songwriting bachelor, thus making it his mission to find his good friend a suitable companion. With this, Pongo is the reason Roger and his wife, Anita, actually came together. This was an example of Pongo's love for Roger, and the two were shown to be the best of friends, having a mutual understanding towards one another. Roger affectionately refers to Pongo as "Pongo, ol' boy" and the two were even shown to share their own dance, which they engaged in whenever something celebratory occurred.

After the marriages of Roger and Anita, and Pongo and Perdita, the male Dalmatian retained his laid-back nature, though his fun-loving personality tone down considerably upon the birth of his and Perdita's fifteen puppies. With their arrival, Pongo remained playful but proved to be a responsible and loving father.

Throughout the adventure, different sides of Pongo's personality were showcased. He was shown to be intelligent, tactical, and stealthy. With his wits, he was easily able to outsmart the cunning Cruella, and her bumbling henchmen, almost flawlessly, and with these assets, Pongo and his family were able to return home safely.