Sir Michael John Gambon (born 19 October 1940) is an Irish-born British character actor who has worked in theatre, television, and film. He is also known as The Great Gambon as dubbed by actor Ralph Richardson. He was trained under Laurence Olivier and started his long work on stage in the National Theatre. He received a Tony Award nomination for Best Actor in a Play for his work in David Hare’s Skylight on Broadway. Gambon retired from stage acting in 2015 due to memory loss. Gambon is most famous for portraying Professor Albus Dumbledore in the Harry Potter film series, starting in the 3rd film after the death of original actor Richard Harris. His other films include, The Cook, the Thief, His Wife & Her Lover (1989), The Wings of the Dove (1997), Gosford Park (2001), Amazing Grace (2006), The King's Speech (2010), and Quartet (2012). Gambon has appeared in various television projects including, The Singing Detective (1986), Wives and Daughters (1999), Path to War (2002), Cranford (2007), Emma (2009), The Casual Vacancy (2015), Churchill's Secret (2016), The Hollow Crown (2016), and Little Women (2017). He was Knighted in 1998 for services to drama, and has won four BAFTA TV Awards, three Olivier Awards and was awarded the Irish Film & Television Academy Lifetime Achievement Award in 2017 for his contribution to Irish film.