Co-presenter of the Children's BBC, as well as an actor best known for playing the character Jake Simmons in the TV series Doctor Who.
He first appeared in the CBBC series Byker Grove as the character Ben Carter.
He appeared on the TV game show The Weakest Link and came in fifth place.
He has a brother, Nathan Smith and a sister, Kerri Rogan-Smith.
He took over hosting UK Top 40 on the CBCC after the departure of former host Konnie Huq.