The Clipso Brothers (Jim and John) were apparently identical twins. They were heavyset, with thick dark hair.
The Clipso brothers had a criminal past. They attempted to trick the inventor Morin Plenty by assembling a machine that could supposedly replace a man's worn-out shoe heel while the man waited, without the necessity of removing the shoe. In fact, the replacement was made by Giant Setton, a small man who hid inside the machine.
Morin Plenty's wife Blossom discovered the deception, and she was killed as the Clipsos attempted to escape. During the altercation, a finger on Jim's right hand was shot off.