Walter Guy David!
There’s no canon for the boys, so I mixed peices of cjswinging's and mamath's designs. Plus I gave him a labcoat! Because if the guys don’t have them I’ll be sad.
Goggles? What goggles.
Edit: someone pointed out that he looks like a ghost buster. Honestly, the theme came on when I was drawing him, so I decided against another giant wrench and went for whatever the heck he’s got right now. My favorite comment has been “Blue matter powered Vuvuzela”