Frank Grillo shirtless in Billions 5-08 "Copenhagen"

Paul Giamatti shirtless in Billions 4-12 "Extreme Sandbox"

Jeffrey DeMunn shirtless in Billions 4-11 "Lamster"

Damian Lewis shirtless in Billions 4-08 "Fight Night"

Paul Giamatti shirtless in Billions 4-06 "Maximum Recreational Depth"

Stephen James Anthony shirtless in Billions 3-07 "Not You, Mr. Dake"

Damian Lewis nude in Billions 3-07 "Not You, Mr. Dake."

Mike Birbiglia shirtless in Billions 3-05 "Flaw In The Death Star"

Jeffrey DeMunn nude in Billions 3-04 "Hell Of A Ride"

Daniel Cosgrove nude in Billions 3-02 "The Wrong Maria Gonzalez"

Paul Giamatti and David Costabile shirtless in Billions 3-01 "Tie Goes to the Runner"

Damian Lewis shirtless in Billions 2-11 "Golden Frog Time"

James Wolk shirtless in Billions 2-07 "Victory Lap"

Damian Lewis shirtless in Billions 2-06 "Indian Four"

David Costabile nude in Billions 2-05 "Currency"

Damian Lewis shirtless in Billions 2-04 "The Oath"

Damian Lewis shirtless in Billions 1-09 "Where the F*ck Is Donnie?"

Paul Giamatti and Ben Shenkman shirtless in Billions 1-08 "Boasts and Rails"

Damian Lewis shirtless in Billions 1-07 "The Punch"

Paul Giamatti shirtless in Billions 1-06 "The Deal"