Question: Which actor in the film Equus is also in the film The Informers?

Context:
Michael Higgins (actor)
Michael Patrick Higgins, Jr. (January 20, 1920 – November 5, 2008) was an American actor who appeared in film and on stage, and was best known for his role in the original Broadway production of "Equus".
Jenny Agutter
Jennifer Ann Agutter {'1': ", '2': ", '3': 'OBE', '4': "} (born 20 December 1952) is a British actress.
 She began her career as a child actress in 1964's "East of Sudan" and went on to appear in "Star!
" and two adaptations of "The Railway Children"—the BBC's 1968 television adaptation and the 1970 film version.
 She also starred in the critically acclaimed 1971 film "Walkabout", before moving to Hollywood in 1974.
 Her Hollywood film roles included parts in "Logan's Run" (1976), "An American Werewolf in London" (1981) and "Child's Play 2" (1990).
 Agutter won the Emmy Award for Outstanding Supporting Actress in a Drama for the 1971 TV film "The Snow Goose", and the BAFTA Award for Best Actress in a Supporting Role for playing Jill Mason in the 1977 film "Equus".
Suhel Seth
Suhel Seth (born May 1963 in Calcutta, West Bengal, India) is a managing partner of consultancy firm Counselage India, founded by him in June 2002.
 He has previously worked at advertising agencies Response, Ogilvy & Mather and Equus (which he co-founded with his younger brother Swapan in March 1996).
 He also co-founded the marketing consultancy firm Quadra Advisory with ex-Hindustan Lever marketing guru Shunu Sen in 1997.
 Seth is also an author, columnist, actor, TV pundit and socialite.
Colin Blakely
Colin George Blakely (23 September 1930 – 7 May 1987) was a Northern Irish character actor.
 He was nominated for a BAFTA Award for Best Supporting Actor for the Academy Award-nominated film "Equus.
Jami Reid-Quarrell
Jami Reid-Quarrell (born 20 January 1978), is a Scottish actor who is best known for his role as the villain Colony Sarff in series 9 of the BBC television series "Doctor Who", for which he was voted Best Male Guest Actor of the 2015 season on the Doctor Who TV fansite.
 He is also a singer, physical performer and choreographer who has appeared in numerous theatre, film & TV productions, operas and musicals.
 In 2010 he created the role of Dr Gangle for Andrew Lloyd Webber's sequel to "Phantom of the Opera", "Love Never Dies".
 His stage appearances include ""Equus"" with Daniel Radcliffe, Trevor Nunn's "The Tempest" with Ralph Fiennes and with renowned physical theatre companies such as Punchdrunk and Frantic Assembly.
 He has also appeared around the world with such companies as the Royal Opera House, Archaos and the Royal Shakespeare Company where he underwent in-depth Shakespearean training tutored by Cicely Berry.
 He also choreographs and movement directs for theatre and screen, including shows for Trevor Nunn and pop videos for Depeche Mode ("Fragile Tension"), Casiokids ("Finn Bikkjen") and Boy Kill Boy ("No Conversation").
Peter Firth
Peter Macintosh Firth (born 27 October 1953) is an English actor.
 He is best known for his role as Sir Harry Pearce in the BBC One show "Spooks"; he is the only actor to have appeared in every episode of the show's ten-series lifespan.
 He has given a myriad of additional television and film performances, most notably as Alan Strang in "Equus" (1977), earning a Golden Globe and an Academy Award nomination for the role.
Jane Wymark
Jane Wymark (born 31 October 1952) is an English actress.
 The daughter of English actor Patrick Wymark (1926–1970) and the American writer and playwright Olwen Wymark, she is best known for playing Morwenna Chynoweth Whitworth (Morwenna Carne by the close of the series) in the 1970s BBC television period drama "Poldark" (1977), and more recently as Joyce Barnaby (1997–2011) in the ITV detective series "Midsomer Murders".
 She has appeared in UK television dramas such as "The Bass Player and the Blonde", "A Touch of Frost", "Dangerfield", "Lovejoy" and "Pie in the Sky".
 She also appeared as Jill Mason in the Birmingham Rep production of "Equus".
Anna Camp
Anna Ragsdale Camp (born September 27, 1982) is an American actress and singer.
 She is known for her role as Sarah Newlin in "True Blood", and her recurring roles in "Mad Men", "The Good Wife", and "The Mindy Project".
 She is also known for her role as Aubrey Posen in "Pitch Perfect" (2012), "Pitch Perfect 2" (2015), and the upcoming "Pitch Perfect 3" (2017).
 She made her Broadway debut in the 2008 production of "A Country House" and played Jill Mason in the 2008 Broadway revival of "Equus".
 In 2012, she was nominated for a Drama Desk Award for her performance in the Off-Broadway play "All New People".
 Camp played Jane Hollander, a researcher for the fictitious "News of the Week" magazine in the Amazon series "Good Girls Revolt."
 She also had a role in the 2011 film "The Help".
The Informers (1963 film)
The Informers (US title - Underworld Informers) is a 1963 British crime film produced and distributed in the UK by The Rank Organisation and distributed in the USA by Continental Film Distributors.
 It was directed by Ken Annakin, produced by William MacQuitty with the screenplay by Paul Durst and Alun Falconer from the novel "Death of a Snout" by Douglas Warner.
 It starred Nigel Patrick, Margaret Whiting, Harry Andrews, Derren Nesbitt and Colin Blakely.
 Cinematography was by Reginald H. Wyer.
Marian Seldes
Marian Hall Seldes (August 23, 1928 – October 6, 2014) was an American stage, film, radio, and television actress whose career spanned over 60 years.
 A five-time Tony Award nominee, she won the Tony Award for Best Featured Actress in a Play for "A Delicate Balance" in 1967, and received subsequent nominations for "Father's Day" (1971), "Deathtrap" (1978–82), "Ring Round the Moon" (1999), and "Dinner at Eight" (2002).
 She also won a Drama Desk Award for "Father's Day".
 Her other Broadway credits included "Equus" (1974–77), "Ivanov" (1997), and "Deuce" (2007).
 She was inducted into the American Theater Hall of Fame in 1995 and received the Special Tony Award for Lifetime Achievement in 2010.

Answer: Colin Blakely