Katania, Agent Panda, and Hammerhands
Katania - 10-12 yo girl trained as a Samurai by her deranged grandfather who chopped her hand off because she had a habit of placing her forefinger too high on the sword handle.
Agent Panda - Homeless man that was kidnapped and used for experiments by the C.I.A. - has false memory implants, species splicing and DNA boosting.
Hammerhands - Former Marine, former Golden Gloves champion who found a Nordic rune stone that embedded itself into him augmenting his natural fighting abilities. Hands are not permanent. He can control them... when they are activated an organic stone like substance that is ever moving covers them. Making them near indestructible