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Anton "Jeffers" Jefferies[1] is an attending anaesthetist and the personal assistant of neurosurgeon Zsa Zsa Harper-Jenkinson.


In early 2017, Jeffers accompanied Zsa Zsa to the UK to help her treat Glen Thomas. (CAS: Episode 1061)

In October 2018, David Hide called Zsa Zsa to help her old student Dylan Keogh after his breakup with Ciara Cassidy and the loss of their child. Upon arriving in Holby, she took Jeffers and David to Dylan's houseboat, and Jeffers managed to unlock his door. After searching the boat, he found Dylan's passport. Following a tip-off from Dylan's father Brian Carroll, they soon arrived at a pub, but they soon realised that they were at the wrong one. David soon noticed a British passport falling out of Jeffers' pocket, and he admonished Zsa Zsa for trying to take Dylan away with her to the US. They soon found Dylan trying to treat Brian after he hit his head on a table, and he begged her to save his father. She reluctantly agreed, and Jeffers assisted her as she drilled a makeshift burr hole to evacuate a clot. After much persuasion from Zsa Zsa, Dylan successfully removed the clot. At the ED, once Zsa Zsa said goodbye to Dylan, David escorted her and Jeffers to the airport. (CAS: Episode 1101)

Behind the scenes

Tom Shaw made his first appearance as Jeffers in November 2017. He made a second appearance as the character in October 2018.


  1. Deleted scene from [[{{subst:#ifexpr: 1101 > 1170 | Episode {{subst:#expr: 1101 + 1 }} | Episode {{subst:#ifexpr: 1101 > 1171 | {{subst:#expr: 1101 - 1 }} | 1101 }} }} (Casualty)|Episode 9]] (S33, E09)