Get the Men's Fitness newsletter!
The 'Strike Back' star talks about the training that changed his career.
Two workout videos from the actor and fitness devotee.
Get a sneak peek of Cullen's battle choreography for the epic series.
The actor worked out 3 times a day and ate 6 times a day.
This circuit routine helped him add 20lbs to his frame.
The most ripped crime fighters of all time.
The Rockets PG on staying strong as he gets older and playing with James Harden.
How the actor sculpted his body and reshaped his TV character in the process.