There were many notable characters in the Freedom Fighters under Jet's lead. One of them was a massive young man named...Pipsqueak. Naturally, he wasn't that.
Strong as an ox, Pipsqueak was perfect for getting things done in a hurry when heavy lifting was required. And was good at beating people up too.
When Jet went to far and almost flooded a city, he left to find a new purpose. Eventually, he found Hakoda, Katara nad Sokka's father, and joined him in their resistance movement. Even helping in the Day Of Black Sun Invasion.