She is an Australian actress, born in Brisbane, Queensland, 1967. She is a daughter of actors Barry and Lindsay Otto and sister of Gracie Otto. She graduated from Australian theatrical school NIDA, which is the same school that Mel Gibson graduated from. Miranda started her acting career when she was 18, and her movie debut was in Emma's War (1987). Her notable credits include The Thin Red Line (1998), and The Lord of the Rings film series (2002- 2003).