Joel Gretsch shirtless in The 4400 4-13 "The Great Leap Forward"

Chad Faust shirtless in The 4400 4-12 Tiny Machines"

Joel Gretsch shirtless in The 4400 4-11 "Ghost In The Machine"

Joel Gretsch shirtless in The 4400 4-10 "One Of Us"

Joel Gretsch shirtless in The 4400 4-09 "Daddy's Little Girl"

Patrick John Flueger shirtless in The 4400 4-07 "Till We Have Built Jerusalem"

Billy Campbell and Joel Gretsch shirtless in The 4400 4-05 "Try The Pie"

Brennan Elliott shirtless in The 4400 3-11 "Terrible Swift Sword"

Patrick John Flueger shirtless in The 4400 3-08 "The Ballad of Kevin and Tess"

Patrick John Flueger shirtless in The 4400 3-07 "Blink"

Patrick John Flueger shirtless in The 4400 3-05 "Graduation Day"

Patrick John Flueger shirtless in The 4400 3-03 "Gone: Part 1"

Patrick John Flueger shirtless in The 4400 3-02 "Being Tom Baldwin"

Joel Gretsch shirtless in The 4400 3-02 "Being Tom Baldwin"

Joel Gretsch and Jeffrey Combs shirtless in The 4400 3-01 "The New World"

Sharif Atkins shirtless in The 4400 3-01 "The New World"

Phoenix Ly shirtless in The 4400 3-00 "Unlocking The Secrets"

Billy Campbell shirtless in The 4400 2-12 "Mommy's Bosses"

Chad Faust shirtless in The 4400 2-10 "Lockdown"

Chad Faust shirtless in The 4400 2-08 "Hidden"