Arnold was never able to beat him up, even with his incredibly powerful foot.
The only other person who ever saw him was a female exchange student from Italy named Carmella, and she confronted this bully on behalf of her continually harassed friend. This nasty character was never seen by any other students or authority figures, and was commonly believed to be imaginary, despite his frequent victim's insistence otherwise. Arnold was never able to beat him up, even with his incredibly powerful foot. FTP, name this nemesis of Gary Coleman's character Arnold Jackson, who remained unseen by the audience for the entire run of Diff'rent Strokes.
The only other person who ever saw him was a female exchange student from Italy named Carmella, and she confronted this bully on behalf of her continually harassed friend.
The Gooch