Smiling Jack

Smiling Jack (桃色徳次郎) is a competitor in the martial arts tournament in the episode Kung Fu Kitty Kontest and is a master of acupuncture with his thumbs. Unusually He appears to be a human Animaloid or at the very least a human-like gorilla.

Profile
Smiling Jack was one of the twelve contestants of Princess Vi's fighting to make it past the preliminary round and was matched against Polly Esther. He had a grin that could tickle the Little Tokyo's lady Mahjong society and thumbs that could tickle a lot of other places according to the Narrator. He creeped Polly out and began the match by taunting Polly to make her move.

When Polly angrily lunged towards him, this allowed Jack to dodge her attack and grab her by the leg, then start tickling her back with his thumb acupressure technique. Smiling Jack then said therapy was over as he rolled Polly out of the arena, winning the match by ring out.

Polly accused Jack of cheating, but the referee, Big Al Dente says thumb tickling isn't against the rule. A surprised Francine noted thumb tickling has been sanctioned by the Kung Fu commissioner.

In his next round, Smiling Jack faced Speedy Cerviche and tried his flying thumbs technique to tickle Speedy into submission, but Speedy proved immune and in a taste of irony, defeated Jack with his own thumb tickling technique.

Kyatto Ninden Teyandee differences
He is known as Momikoshi Tokujiro the Magic Chiropractor in KNT. He talks about how comfortable his technique massages as he attacks Pururun with his shiatsu technique. There is no mention of thumb tickling being against the rules or not.

The narrator reveals Tokujiro's finger pressure move wouldn't work on Yattaro because he was "so dull", allowing Speedy to win the match.

Trivia

 * In Kyatto Ninden Teyandee, he is a caricature of Tokujiro Namikoshi, the founder of Shiatsu therapy which is based on Chinese medicine, who also voices him.
 * Like Seymour Cheese, his voice in SPC is an imitation of Paul Lynde.