Jesse L. Martin will be returning to The Flash later this year after stepping away due to a back injury, according to TVLine. Martin, who plays original cast member Detective Joe West, departed the show following October 30's "News Flash" episode due to an injury he received during the summer outside of filming.
The Flash showrunner Todd Helbing said Martin will return in this season's episode 15 (episode 10 airs January 15), and his in-story absence will be explained in the show.
"There’s an explanation, and then there’s another sort of thing down the line that will give more explanation as to why [Joe] was gone for so long," Helbing said.
The Flash returns from its winter break with Tuesday's "The Flash & The Furious" episode.