"It turns out that as a young boy, Greg was into chess and had a mentor," reveals executive producer Carol Mendelsohn. Filling the mentor role is Emmy nominee Ron Glass, who played Det. Ron Harris on Mendelsohn's favorite '70s comedy, Barney Miller.
"A murder at a chess tournament will reunite Greg with his old mentor," Mendelsohn says. "And we'll learn that Greg was a chess wonder kid and could have been a champion, but for some reason gave it up."
The series will cast a young version of Greg for flashback scenes.
Glass, 68, most recently appeared in Marvel's Agents of S.H.I.E.L.D. and Major Crimes.