He played the villainous Lewis Strauss in the hit Christopher Nolan-directorial which saw Cillian Murphy essaying the titular role.
"Yeah, yeah, I took a beta blocker so this will be a breeze," he says.
The actor said he's glad Universal "went all in" for Nolan and crew to "render a goddamn masterpiece". He called it a "most improved" award and thanked his wife Susan, who's "made an art out of extracting me from my comfort zone".
The official 'X' account, congratulated the actor as they tweeted, "Congratulations to the Best Supporting Male Actor -- Motion Picture winner Robert Downey Jr. for his role in Oppenheimer! #GoldenGlobes."
The 81st Golden Globe Awards are currently underway at the Beverly Hills, California. The Indian audience can stream the award show on Lionsgate Play.
