Welcome back, Wallace Boden! Eamonn Walker will be reprising his role in an upcoming Chicago Fire Season 13 episode, according to TVLine. He’ll appear in Episode 18, airing on Wednesday, April 16, as part of figuring out what happened in a house fire when a firefighter was inside during a collapse. Gary Cole will also appear as Commissioner Grissom in the episode. Showrunner Andrea Newman called the episode “a thrill ride unlike any we’ve done before” in a statement (via the outlet). “Told with flashbacks and unique POVs, Chief Boden leads our team on a search to discover the how, who, and why of a fierce firefight that ended in disaster.” Walker had been with Chicago Fire from the beginning of the series, and the Season 12 finale was his last as a series regular. However, Boden remains very much an active member of the Cfd, with him taking on the role of Deputy Commissioner.