According to Deadline, the contracts of the four original main cast members ended with Season 8. Grant Gustin has already inked a new deal to return to the series, while Candice Patton and Danielle Panabaker are reportedly currently in negotiations to return. However, Deadline notes that Jesse L. Martin was not asked to return (for reasons that have not been made public), which opened the door for him to pursue other projects.

And, as it happens, one of those new projects panned out: Martin will star in "The Irrational," a new series written by Arika Mittman ("Timeless," "Dexter") and based on the book "Predictably Irrational" by Dan Ariely. According to the official synopsis, "The show centers on Alec Baker (Martin), a world-renowned professor of behavioral psychology with a unique insight into human nature who lends his expertise to an array of high-stakes cases involving governments, corporations and law enforcement. However, he meets his match in a female domestic terror suspect who turns his world upside down."

There's no need for fans of Martin's "The Flash" character to fret, however, as Martin is expected to appear in about five episodes of "The Flash" Season 9 — so it's not a complete goodbye to Joe West.