Kristopher Marshall is an English actor. He has played Nick Harper in My Family, Colin Frissell in the 2003 film Love Actually, Gratiano in The Merchant of Venice, and Dave in the first series of Citizen Khan (2012). He played DI Humphrey Goodman in Death in Paradise from 2014 to 2017 and reprised the role in Beyond Paradise in 2023.

My Family is a British sitcom created and initially co-written by Fred Barron, which was produced by DLT Entertainment and Rude Boy Productions, and broadcast by BBC One for eleven series between 2000 and 2011, with Christmas specials broadcast from 2002 onwards. My Family was voted 24th in the BBC's "Britain's Best Sitcom" in 2004 and was the most watched sitcom in the United Kingdom in 2008. As of 2011, it is one of only twelve British sitcoms to pass the 100-episode mark. In April 2020, BBC One began airing the series from the first episode in an 8 pm slot on Friday nights; along with this all 11 series were made available on BBC iPlayer.