Senior Senior Junior
Voiced by: Nestor Carbonell
Señor Sr.'s son and (sometimes reluctant) accomplice, Junior is a spoiled man-child more interested in parties and looking fabulous than in his father's criminal plans and has demonstrated a soft side on various occasions. He once had a brief crush on Kim Possible because of the zodiac-like principles of Animology. He has expressed a desire to be a boy-band singer and has been tutored in villainy by Shego. He proved a fairly capable fighter when tutored by Shego in the episode Two to Tutor, defeating her in a sparring match, even though she didn't use her powers. He has been dating Kim's classmate Bonnie Rockwaller.