Bruce Olafsen was born in Stockholm, Sweden, but later came to the United States and became a naturalized American citizen. As a longtime member of the criminal organization Circus of Crime, Bruto the Strongman works as a circus strongman and weight-lifter. He has particularly strong biceps and teeth. Bruto the Strongman first assisted the Circus of Crime to rob the people that attended the circus and were hypnotized by Ringmaster with one of the attendees being Rick Jones. When Hulk came bursting through the tent, Strongman and the rest of the Circus of Crime attacked Hulk where Ringmaster manages to hypnotize Hulk in order to be part of his next circus act. The next day, Hulk manages to break free from Ringmaster's control and defeat the Circus of Crime before leaving with Rick upon the arrival of Thunderbolt Ross' army.