After S.H.I.E.L.D confiscates Jane's work in Thor, the researchers discuss what they'll do next.
Erik mentions two colleagues. The first is reasonably implied to be Bruce Banner, but who is the second colleague he mentions?
Transcribed from the film:
Who are these people?
I knew this scientist... a pioneer in gamma radiation. S.H.I.E.L.D showed up and... umm. He wasn't heard from again.
They're not going to do that to us. I'm going to get everything back.
mumbles Please. Let me contact one of my colleagues. He's had some dealings with these people before. I'll email him and maybe he can help.
They took your laptop, too.