Freema Agyeman is an English actress best known for role as the Doctor’s companion Martha Jones in the BBC science fiction series Doctor Who (2007–2010) and its spin-off Torchwood (2008). She received further recognition for playing Crown Prosecutor Alesha Phillips in the ITV crime procedural Law & Order: UK (2009–2012), Amanita Caplan in the Netflix science fiction drama Sense8 (2015–2018), and Dr. Helen Sharpe in the NBC medical drama New Amsterdam (2018–2023).

Following her departure from Doctor Who, Agyeman reprised her role as Martha Jones in the Doctor Who spin-off series Torchwood and had a part as Tattycoram in the BBC period miniseries Little Dorrit (both 2008). In 2013, she made her US television debut in The CW’s Sex and the City prequel series, The Carrie Diaries, as magazine editor Larissa Loughlin.

Her other television appearances include Mile High (2005), Bizarre ER (2008), and Dreamland (2023). Agyeman has also appeared in films, including North v South (2015), Eat Locals (2017), and The Matrix Resurrections (2021).