Leonard Nimoy Directed An Episode Of William Shatner's First Post-Star Trek TV Hit

William Shatner and Leonard Nimoy starred opposite one another for three seasons of sci-fi greatness in the original "Star Trek" — but it wasn't the last time they worked together on a TV hit.

More than a decade after "Star Trek" ended its run, Shatner starred as the title character in the cop drama "T.J. Hooker," which ran for four seasons on ABC and one season on CBS. During that time, Shatner and Nimoy's paths crossed again when Nimoy directed the 14th episode of Season 2 and appeared in a guest-starring role in the 16th episode. 

Nimoy directed "The Decoy," which first aired in January of 1983 and involved luring out a serial killer by using Heather Locklear's character, Officer Stacy Sheridan, as bait. Meanwhile, his guest-starring role — which he took on the condition that he could direct an episode of the series — was in an episode titled "Vengeance Is Mine." The plot focused on Hooker's attempt to take down a man who raped the daughter of his former partner, played by Nimoy. It aired in February 1983.

Though Shatner and Nimoy's on-and-off-screen bond is legendary at this point, it appears their connection ended in an unfortunate way. Shatner previously opened up about how the pair was on the outs when Nimoy died of chronic obstructive pulmonary disease, or COPD, in 2015.

"We had some disagreements to begin with, and in the end," Shatner explained in a "Today" interview on NBC in 2016 (via Digital Spy). "In between was a brotherhood, and I loved it. I sought to find out why — couldn't. I thought whatever it was would blow over, he'd tell me what it was. I would try to make amends or find some common ground — but he died before that could happen. I miss him."