Forrest Griffin (retired)
Nate Marquardt (didn't get his TUE though)
Shane Roller (retired)
Todd Duffee (got TRT since he was a kid as far as I know so he might actually suffer from hypogonadism)
Why am I thinking of Randy Couture as well? Not sure about that one.
Rookie Hammer Squad 2015
Frankie Edgar - Dominick Cruz - Jorge Masvidal - Cat Zingano - Holly Holm