Christopher Plummer, CC (Companion of the Order of Canada) (born December 13, 1929) is a Canadian (Canada) theatre, film and television actor (acting).

In a career that spans over five decades and includes substantial roles in film, television, and theatre, Plummer is perhaps best known for the role of Captain Georg von Trapp (Georg Ludwig von Trapp) in The Sound of Music (The Sound of Music (film)). His most recent film roles include the Disney-Pixar 2009 film Up (Up (2009 film)) as Charles Muntz, the Shane Acker production 9 (9 (2009 film)) as 1, The Last Station as Leo Tolstoy, and The Imaginarium of Doctor Parnassus as Doctor Parnassus.