>>150078114
You have to currently be gamma'd up. So any character that has a big enough of a gamma boost probably did, temporarily.
The same way Cosmic rays were alluded to be influence from TOAA, gamma rays are alluded to being influence from TOBA.
Near the begging of Immortal Hulk when Hulk is draining other gamma mutates of their power, he's also weakening TOBA's influence on them. This probably applies to characters who had gamma amps at one time, but lost them in some other way.
The opposite is true too. When absorbing man with the red absorbtion amp absorbed too much gamma, he fell to the influence of TOBA and became a conduit.