3. Dominic Monaghan
And Dominic Monaghan plays William Joyce in Quantum Break, who as you can guess is related to main character Paul Joyce. As a matter of fact Will is his brother, who’s apparently been murdered by the evil head of Monarch Corporation, Paul Serene (Aidan Gillen). This means that Jack definitely has a score to settle, and given that the game’s story is about time-travel, it remains to be seen how Will is involved in past (and perhaps future…) events.