In 'Top Gun: Maverick' (2022), which actor plays Rooster?

Who played Sebastian in 'La La Land'? Who played Andrew in 'Whiplash' (2014)? Which actor won an Oscar for playing the music teacher in 'Whiplash'? In 'The Social Network', which actor plays Mark Zuckerberg? In 'Rocky', what is the name of Rocky's girlfriend and later wife? In 'Rocky', who is Rocky's opponent in the heavyweight title fight? In 'Rocky IV', who is Rocky's Soviet opponent? In 'Rocky', which famous steps does Rocky run up in Philadelphia?