User blog comment:Freefalling Lilacs/Doodle Requests and a TDI:FYE Sketch Dump/@comment-1341721-20110912051942/@comment-2021069-20110912232531

Thank you!

And I'd never actually heard of Jonathan Groff before but he does actually bear a resemblance. I'd actually based Gabe's looks slightly off of Irish actor Robert Sheehan. I'm trying to find a good reference pic, but just Google the guy and I think you'll see the resemblance.