Marcia Strassman, a veteran actress best known for her roles on television’s Welcome Back Kotter and the Honey, I Shrunk The Kids films, has died at age 66 after a battle with breast cancer.

Strassman’s sister Julie confirmed the talented actress had passed on Friday, saying, “She was my idol. She was the funniest, smartest person I knew, and she always made me laugh. She was incredibly talented in everything — not just acting and dancing and singing, but she could also sew and knit — and she was gorgeous. She was an amazing woman and loved by her family and loyal friends of 40 and 50 years.”

Indeed, Strassman’s career took her all over the creative map. After starting out as the singer for a band in the ’60s, she moved on to television roles in The Patty Duke Show and M.A.S.H. before finding a hit in Welcome Back Kotter, which starred Gabe Kaplan and a young John Travolta. Strassman then moved on to voice work on the animated series Aaahh!!! Real Monsters before finding success in film with the ’80s Disney favorite Honey, I Shrunk The Kids.

Those who knew Strassman have taken to Twitter to mourn the loss of such a funny, talented woman, including several people who worked with her over the years.

Saddened by the loss of #MarciaStrassman. Met on the pilot for E/R in '84 and worked with her on #HoneyIShrunkTheKids. A strong, funny woman

— Stuart Gordon (@OfficialSGordon) October 27, 2014

God bless Marcia Strassman. Such a great person and so nice. Just terrific personality. Very sad. #RIPMarciaStrassman

— Jon Lovitz (@realjonlovitz) October 27, 2014

So sad that a sweet friend, kind person & wonderful actress Marcia Strassman lost her brave battle with cancer today. pic.twitter.com/4gQ4MEvEal

— Bob Weide (@BobWeide) October 26, 2014

Just learned passing of Marcia Strassman. Went to school with her and my honor to have had worked with her as well. RIP Marcia

— Patty Duke (@pattyduke_id) October 27, 2014

Strassman is survived by her daughter, Elizabeth Collector, and a brother, Steven Strassman.