Colman first came to prominence for her supporting role as Sophie Chapman in the Channel 4 comedy series "Peep Show" (2003–2015). Her other TV comedy roles include "Green Wing" (2004–2006), "Beautiful People" (2008–2009), "Rev." (2010–2014) and "Twenty Twelve" (2011–2012). She also played various roles in "That Mitchell and Webb Look" (2006–2008), alongside her "Peep Show" co-stars David Mitchell and Robert Webb. Colman's move to drama saw her receive critical acclaim for her performance in Paddy Considine's film "Tyrannosaur" (2011). Her other film roles include PC Doris Thatcher in "Hot Fuzz" (2007), Carol Thatcher in "The Iron Lady" (2011), Queen Elizabeth in "Hyde Park on Hudson" (2012), Bethan Maguire in "Locke" (2013), Margaret Lea in "The Thirteenth Tale" (2013), Marion in "Tale of the Brave" (2014) and the Hotel Manager in "The Lobster" (2015). Colman will portray Queen Elizabeth II in the third and fourth season of the original Netflix series "The Crown".