Iron Man

Iron Man (aka Tony Stark) is one of the founding members of the Avengers.

Formation of the Avengers
As a result of Loki's meddling, Iron Man accidentally intercepted a distress call from the Teen Brigade regarding a situation involving the Hulk. Ant-Man, the Wasp, and Thor had also responded to the signal and worked to subdue the Hulk. When Loki was revealed as the true cause of their troubles, the four heroes worked together to bring him down. Seeing how much more effective they worked as a team than solo, the group decided to stick together and call themselves the Avengers.

Powers
Tony Stark is an ordinary human, though his armor grants him abilities like that of a super human.
 * Flight
 * Super Strength

Secret Identity
Iron Man's identity is a secret, and only a select few know that Tony Stark is the man behind the mask: