Richard Dillane (born 1964) is an English actor. He played British agent Peter Nicholls in Ben Affleck's 2012 Iran-based political thriller, Argo, winner among other things of the 2013 Oscar, Bafta and Golden Globe for Best Picture, and Merv the husband of Margaret Humphreys (played by Emily Watson) in Jim Loach's fact-based movie Oranges and Sunshine.
He was Wernher von Braun in the BBC television docudrama Space Race, Nero in Howard Brenton's play Paul at the National Theatre of GB and appeared several times as Stephen Maturin in the BBC radio adaptations of the Patrick O'Brian Aubrey–Maturin novels and Peter Guillam in three John le Carré adaptations.
Dillane's other film work includes The Dark Knight (as Acting Commissioner), Mindscape with Mark Strong, The Dinosaur Project, The Edge of Love, The Jacket, Tristan & Isolde and as Cole Porter's last lover Bill Wrather (a composite character) in Irwin Winkler's biopic De-Lovely which starred Kevin Kline.