Dylan Llewellyn is an actor. He has been acting since 2009, debuting in a short film. The following year, he had his first television role in The Bill. He then became known for his role as Martin ‘Jono’ Johnson in the soap opera Hollyoaks. He reprised his role in the spin-off Hollyoaks Later. After this, he played recurring character Seb Channing in Holby City. He later had performances in the films Frequencies and Down Dog. From 2018 to 2019, he gained wider recognition for starring as James in Derry Girls. He went on to appear in an episode of Call the Midwife.