Throughout the 15 seasons of , fans met and fell in love with Dr. Spencer Reid (Matthew Gray Gubler), and many of the best episodes of the series double as some of the best Spencer Reid episodes of the show as well. Spencer Reid began his time on the show in the pilot episode as the youngest member of the Behavioral Analysis Unit. The team uses psychological profiles to analyze both victims of crimes and the unknown subjects who commit them.

Reid became a valuable member of the team thanks to his eidetic memory, speed-reading skills, and puzzle-solving abilities.

Reid becoming a fan favorite might have seemed unlikely when he was a socially awkward and neurotic member of the procedural crime show in the beginning. However, out of everyone on , no one was a more well-rounded and complex character than Reid, and he quickly stole fans' hearts.

Thanks to his quirks, insecurities, and tough life before ever joining the team, he was a perfect member of the BAU to put front and center in more episodes than other members. Whenever a Reid-centric episode arrived, fans knew they were in for something special. Though he hasn't appeared in just yet, it's likely the series will have some episodes to rival the best Spencer Reid episodes of the original show when he does.

Somebody's Watching

"Somebody's Watching" was a first-season episode with . This episode showed the two agents at a profiling seminar when they were asked to consult on a series of murders.

A stalker had targeted a Hollywood actress, and she developed an attraction to Reid that he reciprocated.

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