Sitcom actress Tonita Castro died Sunday of stomach cancer. She was 63.

"She was a self-made woman in the industry," her agent, Nikkolas Rey, told The Hollywood Reporter. "She had a gift of comedy, she would make a joke about anything."

A former radio news reader, Castro got her first big TV break with her recurring role on the Matthew Perry comedy Go On, which aired for one season from 2012-13. She went on to land a recurring role on the Seth Green series Dads before appearing in The Grinder pilot and two episodes of Life in Pieces this season.

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It was on the set of the CBS comedy, on which she played Angelique Cabral's grandmother, that Castro first began to feel sick.

"She was doing the best stuff of her career, she was getting offers. It was a big loss for me and so many people who loved her," said Rey. "The most important thing about her was she was so wonderful and authentic and energetic. She was always positive."

Her other credits include Glee, Two and a Half Men, The Shield, Southland, Dexter, The Sarah Silverman Program and Awkward.

Castro is survived by her husband.