Played by William Beck

12/03/2011 (S25 E28)

Consultant in Emergency Medicine

Dylan Keogh is a consultant in emergency medicine and the longest serving current consultant of the ED. Brought in by co-Clinical Lead Miriam Turner in 2011, Dylan has since established his own place in the department as well as leaving a unique impression on everyone he’s worked with. Although Dylan is reluctant to build relationships with his colleagues, he loves to work with others in getting to the bottom of a medical mystery.

Prior to joining the department, Dylan was a GP in a countryside surgery where he lived on a farm with his dog Dervla. He was also married to army medic Sam Nicholls, but they became separated before he joined the team at Holby. He was more than surprised when she turned up later in the year as a new registrar in the ED, and the truth eventually came out during the ED fire at the end of 2011.

In recent years, Dylan has built relationships with a few staff including Zoe Hanna and Ben “Lofty” Chiltern, both of whom have now left the department. He’s also had troubles with his father who walked out on his new wife and daughter – nevertheless, Dylan offered to help out with the baby. Although he may not want to admit it, Dylan secretly has a soft spot for things that matter most to him.

​Family: Brian Carroll (father), Rihanna Carroll (half sister)


  • Dylan left the ED on the 15 December 2012 (S27 E16)
  • He returned to the ED on the 25 October 2014 (S29 E8)
  • Dylan was married to Sam Nicholls until their divorce in 2012

Previous Positions:

  • Acting Lead Consultant in Emergency Medicine (2015, 2018, 2019-2020)