Nathan Fillion first appeared as John Nolan in ABC's "The Rookie” in October 2018, and four seasons later the series is still going strong because of its compelling characters who navigate the life of law enforcement. But mixed in with the heavy themes are some fun moments for fans of "The Rookie" and Fillion's past projects.
Fans of “Castle” have likely missed the father-daughter relationship between Fillions’ Richard Castle and Alexis played by Molly C. Quinn. Luckily fans got a brief Quinn and Fillion reunion when she appeared in Season 3, Episode 8 of “The Rookie” and played the daughter of conman Oscar Hutchinson.
One Redditor commented, “Omg, Molly was there. And they didn't even announce it or hype it up." While it was a brief introduction, and her character likely won't be back, it was a fun throwback for fans still missing "Castle."