James Possible's older brother, Joss's father, and Kim, Jim, and Tim's uncle. Much to James' distaste, he refers to his younger brother by a childhood nickname of "squirt". Slim is also very fond of Ann Possible. The whereabouts of his wife, Joss's mother, are never addressed. He appears in "Showdown at the Crooked D" and "Graduation". A cowboy by choice and lifestyle, he owns the Lazy C Ranch in Montana, which is apparently more than it appears as he has a high tech control center tied into his own system of launched satellites, as well as having a contingent of "cybertronic" robotic horses. There is no sign or mention of living breathing livestock. One summer Drakken had set an evil scheme in motion at a neighboring property named the Crooked D Ranch which the Possible Clan was able to thwart.