Jason O'Mara
Jason O'Mara (born August 6, 1972) is an Irish actor. He has starred in the American television network dramas In Justice, Life on Mars, Terra Nova and Vegas. He is also known for voicing DC Comics' superhero Batman in the animated films Son of Batman, Batman vs. Robin, and Batman: Bad Blood as well as Justice League: War and Justice League: Throne of Atlantis. Description above from the Wikipedia Jason O'Mara licensed under CC-BY-SA, full list of contributors on Wikipedia.
Known for
Resident Evil: Extinction 
The Man in the High Castle 
Terra Nova 
Justice League Dark: Apokolips War 
Batman vs. Robin 
Batman: Hush 
Justice League Dark 
The Siege of Jadotville 
Justice League vs. Teen Titans 
Batman: Bad Blood 
Justice League: Throne of Atlantis 
The Death of Superman 
Reign of the Supermen 
One for the Money 
In a World... 
Son of Batman 
Justice League: War 
Wakefield 
Hypnotic 
Your Lucky Day 
Smother 
Showrunners: The Art of Running a TV Show 
The Death and Return of Superman 
Irish Blood