Definition of 'maniacal'. maniacal (mÉnaÉªÉkÉl ) If you describe someone's behaviour as maniacal, you mean that it is extreme, violent, or very determined, as if the person were insane. He was almost maniacal in his pursuit of sporting records.
Throughout his career, Clooney has won two Academy Awards, one for Best Supporting Actor for his role in Syriana and one for Best Picture as one of the producers for Argo, as well as a BAFTA and a Golden Globe.
Why An Oscar Win For Ryan Gosling Is Historic. And How One Man Brought Cagney's Story To The Stage. Ryan Gosling may make history tonight. If he wins an Academy Award for La La Land, it would mark the first Best Actor win for an original Hollywood musical since James Cagney won his Oscar for Yankee Doodle Dandy in 1943. The only other two Best Actor winners in movie musicals were Yul Brynner (The King & I), and Rex Harrison (My Fair Lady).