Who won the Oscar for Best Supporting Actor for 'Dallas Buyers Club'?

For which film did Christian Bale win the Oscar for Best Supporting Actor? Who won the Oscar for Best Supporting Actor for 'Beginners'? For which film did Christopher Plummer win the Oscar for Best Supporting Actor? Who won the Oscar for Best Supporting Actor for 'Django Unchained'? For which film did Jared Leto win the Oscar for Best Supporting Actor? Who won the Oscar for Best Supporting Actor for 'Whiplash'? For which film did J.K. Simmons win the Oscar for Best Supporting Actor? Who won the Oscar for Best Supporting Actor for 'Bridge of Spies'?