Marcus is one of the minor characters in the Dork Diaries series. He is friends with Theodore L. Swagmire lll.


Marcus is a nerd. He is a Mathlete, Book Worm and a Geek. He loves to make jokes and make things with his friends. He was in the band Nikki Maxwell made, Actuall, I'm not really sure yet. 


Marcus has short, brown hair and green eyes. He wears nerdy clothes and has to high up pants.


Marcus's friends are Theodore L. Swagmire lll, Nikki Maxwell, Brandon Roberts, Violet Baker, Chloe Garcia and Zoeysha "Zoey" Faranklin.