Olivia J. Thirlby (born
October 6, 1986) is an American actress best known for her roles as Leah, the
best friend of Ellen Page's character in the 2007 film Juno; as Natalie in The
Darkest Hour (2011) and Judge Cassandra Anderson in Dredd (2012). In June 2008, Thirlby
was described by Vanity Fair
magazine as a member of "Hollywood's
New Wave".
