An Irish actor that looks like Liev Schreiber?

Basically, I'm trying to remember the name of an Irish actor who looks quite a bit like Liev Schreiber, the guy known for Wolverine and Defiance. You can see Liev here : http://www.imdb.com/name/nm0000630/ All I can remember is he has an Irish accent. It's bugging my brain. Any suggestions welcome and... show more Basically, I'm trying to remember the name of an Irish actor who looks quite a bit like Liev Schreiber, the guy known for Wolverine and Defiance. You can see Liev here :
http://www.imdb.com/name/nm0000630/

All I can remember is he has an Irish accent. It's bugging my brain. Any suggestions welcome and appreciated. Thank you.
Update: Thanks for your suggestions but it's not Cillian Murphy, Roy Walker or Brendan Coyle.
Thumbs up for trying though. :)
3 answers 3