Marcus began his comedy career in Bristol whilst studying drama at University and soon won the BBC New Comedian of 1996. He has since emerged as a major comedy, writing and acting talent, performing in the UK and beyond and has become a regular voice on BBC Radio with an impressive list of TV and film credits.

The Edinburgh festival has been a regular haunt for Marcus, and has seen him receive a great deal of critical acclaim over the years performing at almost every festival since 1996.  TV appearances also include Live at the Apollo (with Jack Dee), Have I Got News For You, The A-Z of Music and News Knight alongside Sir Trevor McDonald on ITV. Marcus Brigstocke's Trophy People was a documentary series following those who compete at the highest level in unusual hobbies - Scrabble champions, competitive bell-ringers, youth debaters and model air plane builders and flyers. In 2006 Marcus went to France for Excuse My French - he had 4 weeks to learn the language, almost from scratch, then performed stand up in French to crowds in Marseille and Paris.

Radio 4 has become a second home for Marcus as he is rarely off the 18.30 slot in one form or another. He is the regular angry young man on The Now Show with Punt and Dennis. He has written and recorded three series of Giles Wemmbley-Hogg Goes Off and 4 'specials'. 

He played the head of a consultancy firm - Unthinkable Solutions as Ryan Packer in Think The Unthinkable. Other recordings include Just a Minute, Newsquiz, The Today Program, The Unbelievable Truth, 2000 years of Radio, A funny thing happened on the way to the despatch box and the wonderfully silly 99p Challenge.