Who he plays: Mark Holter
Where you know him from: That's right — the guy who kept Jim and Pam from getting together on The Office is back. On top of playing Roy, David Denman has been in everything from Michael Bay's 13 Hours: The Secret Soldiers of Benghazi to the much-loved family drama Parenthood. He has a habit of portraying characters that are just a tad bit . . . shall we say . . . dickish at first but gradually become more likable as we get to know them, so here's hoping Mark is the same.