Sue McCormick was an actor for 40 years and wrote four professionally produced plays. She studied at Aberystwyth University before completing an MA in Creative Writing at Lancaster. She was a finalist in the Scottish Arts Club Competition 2020, and her debut novel, Small Acts of Courage, was shortlisted for the Retreat West Novel Prize.

She now lives in a small village in Dumfries and Galloway. Her first Holly and Ivy mystery, Red As Any Blood, was published by Honno in September 2025.