Dr. Edwin Steen M.D. (a.k.a. Lifeline)
Lifeline signed up to be an EMT at the ripe old age of 16. He immediately fell in love with the profession. He worked his way from EMT to Paramedic and eventually joined the Army to be a Combat Medic.
The man is unshakable in combat. Which is what brought him to the attention of the G.I.Joe team. Once there, he decided to eschew all firearms, something he couldn't do while serving with a regular Army Unit.
