The Flash, but who?
In the series The Flash, in the episode on 5/10/2016, he's listed as a guest star.
I DVR'd it, so I'll watch it again at high speed (pun semi-intended), but I didn't see anyone that looked like him in that episode, unless he was one of the group of meta-humans at the end.
But if anyone knows where he was in that episode, please let me know.