The 2018 Oscars were held at the Dolby Theatre at Hollywood & Highland Center on March 4 and were telecast live on ABC

By Char Adams
March 04, 2018 09:38 PM

And the Oscar goes to …

Allison Janney took home the award for Best Supporting Actress Sunday night at the 2018 Academy Awards in Los Angeles.

The actress, 58, jokingly said, “I did it all by myself,” when accepting the award. She also thanked her fellow nominees, saying, “You represent everything that is good and right and human. You are all extraordinary.”

She added, “[I want to thank] a cast and crew and BIRD that elevated my work.”

Finally, she thanked her brother, Hal, who died by suicide last year.

“This is for Hal. You’re always in my heart. Thank you very much,” she said. Janney’s brother died at the age of 49 in February 2011, according to his obituary.

The actress spoke about his passing to HuffPost Live in 2016, saying, “I lost my brother to addiction and other things. It was terrible, and I think that’s why when this show came into my lap and I saw it was about people in recovery and addiction, I was like, ‘I’m doing it. I just want to do it. I just want to do it for him,’” she said. “I love it when people come up to me and say, ‘I’ve been in recovery for four years or 25 years, and I thank God this show is on TV.’”

Allison Janney won Best Supporting Actress at the 90th Academy Awards
Frazer Harrison/Getty

Janney beat out Mary J. Blige (Mudbound) Octavia Spencer (The Shape of Water), Laurie Metcalf (Lady Bird) and Lesley Manville (Phantom Thread).

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The win proved to be a triumphant end to the award season for Janney with wins at the Golden Globes, Critics’ Choice and Screen Actors Guild Awards

In I, Tonya, the seasoned actress plays Tonya Harding’s allegedly abusive mother LaVona Golden. Janney previously told PEOPLE that Harding herself congratulated the actress on the Oscar nomination.

“I got a lovely text from her this morning congratulating me saying, ‘You’re going to the big top, girl!’ Which was very sweet of her,” Janney recalled.

When preparing for the role, Janney and writer Steven Rogers worked to track down Harding’s mother, the actress told Entertainment Weekly.

“He tried everywhere, everywhere led to a dead end,” Janney said. “Tonya wasn’t really interested in knowing where her mother was or didn’t really care.”

The 2018 Oscars were held at the Dolby Theatre at Hollywood & Highland Center on March 4 and were telecast live on ABC.