Porkchop is Doug's dog. He is anthropomorphic except he cannot speak in any languages. He communicates by such dog sounds as barking, as well as spelling along with using facial expressions and hand gestures. Since he was given to Doug when he was one year old on Christmas morning, he is able to sense what Doug is feeling and saying. Unlike his owner, he is very outgoing and doesn't hesitate to dive into adventure.
His home is a fully equipped and furnished fake igloo in the Nickelodeon version and a tepee in the Disney version. He also has a mailbox, clothes, a Walkman and many other human possessions. It is possible Porkchop could be a parody of Snoopy.
- Just like his owner, he is also the only other character from the show to appear in almost every episode.