Since a young age, Trickster led a very lonely, until he was caught stealing from a band of thugs. But they changed him for good by taking him in & training him in the way of the bow & arrow. Later on, he became a professional hitman.
Mr Operative was a professional spy & later on would gather a highly skilled & talented group of people to carry out missions to fight against threats to humanity. He's highly skilled in small arms combat, where his abilities are second to none.
Super Soldier was a war veteran who was captured by the enemy & turned against his allies whilst becoming a bionically enhanced human. But, with the help of his old allies, this triggered him to remember his prior life & he would come back to reality.