He is known for his portrayal of Luca Falcone in the HBO miniseries The Penguin (2024), his turn as "Wolf" in The 10th Kingdom, his performance as detective Steve Thomas in Perfect Murder, Perfect Town (2000), his recurring role as Lorelai Gilmore's love interest Max Medina on the WB series Gilmore Girls (2000–2003), and his role as Josh in the indie romantic film Kissing Jessica Stein (2001).

He appeared in the movie Gia with Angelina Jolie, as a parole officer in the Showtime original series Street Time with Rob Morrow, had a recurring role as Det.

Harry Denby in the seventh season of NYPD Blue, and was featured in the 2005 NBC series Law & Order: Trial by Jury as Det.

In 2000 Cohen had a co-starring role as Wolf in the hit miniseries The 10th Kingdom, where he played a mythical character from a land of fairy tales.

[2] He starred opposite Kimberly Williams, John Larroquette, Dianne Wiest, Daniel Lapaine, Ed O'Neill, and Rutger Hauer.