He was a series regular for season 4 with guest appearances in seasons 6 and 7. Noble played Morland Holmes, father of Sherlock Holmes, in Elementary. He is also the voice of Unicron for the television show Transformers: Prime and its conclusion TV film. In 2011, he appeared as Real Estate tycoon Leland Monroe in Rockstar's video game L.A. He played Russian Consul Anatoly Markov in the sixth season of the US television series 24. He is internationally known for his performance as Denethor in The Lord of the Rings trilogy. He made occasional appearances on the television series All Saints. Noble starred as scientist Walter Bishop in the television series Fringe. His charity, Noble Bones, helps to raise awareness of the disease. In 2012, Noble was diagnosed with osteoporosis. He was also cast as a doctor in the Australian TV series All Saints. In 2015, he joined the main cast of the television series Elementary as Sherlock Holmes's father. Additionally, he voiced and provided motion capture for his role in the 2011 video game L.A. He also provided the voice of the DC Comics supervillain Scarecrow in the 2015 video game Batman: Arkham Knight, where his character served as the main antagonist.

His highest profile film role was as Denethor in Peter Jackson's The Lord of the Rings trilogy. Walter Bishop in the US Fox science fiction television series Fringe, and Henry Parrish in the Fox action-horror series Sleepy Hollow. John Noble (born 20 August 1948) is an Australian actor.

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