Zoe Reynolds is a fictional case officer in the counterterrorism department of MI5, featured in the British television series Spooks, also known as MI5 in the United States.

Prior to starting her job, Zoe studies for her degree at Oxford University; this is revealed to Danny Hunter when she is preparing to go undercover in the third episode of series two.

Zoe is a junior case officer in Section D, which she joined shortly before September 1997,[1] and is part of the original leading trio of field agents (along with Tom Quinn and Danny Hunter).

In the book Spooks: The Personnel Files,[2] Zoe, accepting that she will never see Danny again, sets up a PO box for him to write back, and finally expresses her feelings for him.

Harry notes that Danny never knew the depth of Zoe's affections as a sad reminder of the price MI5 officers are required to suffer.