Isaac Mayfield is a former registrar in general surgery who worked on Holby City Hospital's Keller Ward from 2016 to 2017.
Behind the scenes[]
Marc Elliott originally portrayed Isaac in Holby City from the June 2016 episode "The Lone Ranger" to the April 2017 episode "Someone to Look After Me". Elliott returned to the role in series 21 for a brief guest stint.
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