The Big Bang Theory stars shared their grief over the loss of Carol Ann Susi, who was the voice of Howard Wolowitz's mother on the hit CBS show.

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The actress, who also appeared on other popular shows like The King of Queens, That '70s Show and Seinfeld, died Tuesday after battling cancer. She was 62.

Actress Kaley Cuoco took to Facebook and shared a photo of Susi with the caption, “Rest in peace hilarious, adorable, sweet Carol Ann Susi. You will forever be part the Big Bang Theory family.”

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"The Big Bang Theory family has lost a beloved member today," CBS and the show's executive producers - Chuck Lorre, Steven Molaro and Bill Prady - said in a joint statement. "Unseen by viewers, the Mrs. Wolowitz character became a bit of a mystery throughout the show's eight seasons. What was not a mystery, however, was Carol Ann's immense talent and comedic timing, which were on display during each unforgettable appearance."