Hero System

Morpheus Unbound Supporting Cast for Hero System

Bill Willingham's Destroyers Blackthorn Boa Constrictor (COIL) Cyanide (Bay Area Guardians) Genocide Minuteman Mark IX (Genocide) Genocide Minuteman Mark X (Genocide) Ego Prime (New Conquerors) Fireman Hardware (PRIMUS D-SAST) Hardware's "Grond Stopper" Battlearmor Honeybee (New Conquerors) Lomax Kijarat (New Conquerors)	Matrix (New Conquerors) Mr. Gibson (Bay Area Guardians) Ms. Fist (New Conquerors) Mysa (New Conquerors) Pit Viper (COIL) Pulsecat (Champions(?)) Pulsetiger (PRIMUS D-SAST) Roger Donahue, PI Rogue (New Conquerors) Sapper Shieldwall Strongforce Swarm Taurus (New Conquerors) the Doctor White Dwarf White Tiger
Then entire line of "They Might Be Heroes" books contains SHRPG characters and adventure ideas easily adaptable to HERO system. In fact, some of them are so easy to adapt that I have already done so! Just grab the books and start playing :-)