Mr. Henderson is a character who resembles Captain K'nuckles except with a mustache and fancy clothes which has proven rather unfortunate for him because of his resemblance to K'nuckles. This has gotten him into trouble a lot. In "Lead 'Em and Weep" Flapjack and K'nuckles gives a guy a wedgie and was about to kill them but Bubbie saves them and put Mr. Henderson and his assistance Bobby in their place, then they were the ones who got hit by the enraged man. After this, they were never to be seen since.