It was confirmed in a TV Guide interview with Andrew Kreisberg that Colin Donnell will reprise his role as Tommy Merlyn in Season 3 Ep 2 of
Arrow. Check out his comments below:
Colin Donnell is coming back in Episode 302. Tommy will be in the flashback story. We'll be telling the story about how Tommy and Oliver just missed each other in Hong Kong. It's a really amazing story and we're so excited to have Colin Donnell back. It's one of the advantages of the storytelling that we do that even when you die in the present day, you can still be alive in the flashbacks. It was something that we had talked about last year and then when we committed to doing the Hong Kong story, we knew we could really make it work.
It was also confirmed on Twitter by Donnell himself. This is exciting news! What do you guys think?