"I need you, the team needs you, the city needs you. I'm not saying you shouldn't do your penance. You probably should, but do it as Spartan."
Oliver convincing Diggle to return to Star City

"Penance" is the fourth episode of the fifth season of Arrow, and the ninety-sixth episode overall. It aired on October 26, 2016.


Oliver and Lyla team up on a secret mission for Diggle. Felicity finds out and disapproves of the plan and opts to stay behind. When Tobias Church launches a deadly assault against the city, Felicity must decide if she wants to send the recruits out without the Green Arrow.[1]


  • Oliver mentions that he thinks that wearing a hockey mask and being a vigilante is cool. This is a reference to his role as Casey Jones, in TMNT: Out of the Shadows movie, who also is a vigilante who wears a hockey mask.



Production ran from July 27 until August 8, 2016, with a break for British Columbia Day on August 1. Shooting ran from August 9 until August 18, 2016.[2]


  1. Arrow #5.4 “Penance” Official Description - GreenArrowTV
  2. Marc Guggenheim (@mguggenheim) - Twitter