He's famed for playing a certain type of role in his most-loved movies, and Liam Neeson's film Absolution ... the talented ...

The Delta Force is a 1986 American action film starring Chuck Norris and Lee Marvin as leaders of an elite squad of Special Forces troops based on the real life U.S. Army Delta Force unit.

Keller also breaks down Delta Force operations and skills, as depicted in the hostage rescue scenes in "White House Down," starring Channing Tatum and Jamie Foxx; and "Land of Bad," starring Liam ...