Benjamin Harvey Bailey Smith (born 21 September 1977), professionally known as Doc Brown, is an English actor, comedian, rapper, screenwriter, songwriter, producer and voiceover artist.

He is also known for portraying Nathan Carter in the CBBC television series 4 O'Clock Club from 2012 to 2015, and Imperial Security Bureau agent Lieutenant Supervisor Blevin in Andor.

"[7] Doc Brown began performing as a battle rapper in 2000, appearing at the Dingwalls nightclub in Camden Lock, and later at the "Jump Off" competition in Soho.

He formed the British hip hop group Poisonous Poets alongside rappers Lowkey, Stylah, DJ Snips, Therapist and Tony D, releasing a mixtape in 2005.

[11][12] Since then, Doc Brown has released collaboration material with Andy Burrows,[13] The Jazz Defenders,[14] Verb T and Romesh Ranganathan.

In 2013 he guest starred in the Channel 4 comedy-drama series Derek as a young man sentenced to community service in a nursing home.

Most recently, Smith has delved deeper into dramatic acting, starring in the Frank Spotnitz television show Hunted, a thriller for Cinemax.

He went on to shoot an episode of Midsomer Murders and in 2014, he played DS Joe Hawkins in the final series of ITV's Law & Order: UK.

[17] Smith has been a guest presenter several times on the BBC Radio 5 Live film review show hosted by Simon Mayo and Mark Kermode.