Alaina Reed Hall

Alaina Reed Hall, who portrayed Olivia Robinson on Sesame Street for 12 years, has died.

Reed Hall was diagnosed with breast cancer in 2007 and succumbed Thursday at a Santa Monica, Calif., hospital, her husband, Tamim Amini, told the Los Angeles Times.

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The actress, who turned 63 last month, also starred on Broadway and was one of the original cast members in the off-Broadway production of Sgt. Pepper's Lonely Hearts Club Band on the Road. She also appeared in Hair, Chicago and Eubie!

In 1976, she took on the role of Sesame Street's Olivia, a professional photographer and the kid sister to the character Gordon. Reed Hall left the Street in 1988 because of her conflicting schedule with the NBC sitcom 227 — in which she played the best friend of Marla Gibbs' character.

Watch full episodes of Sesame Street

Reed Hall appeared in movies such as Death Becomes Her, Cruel Intentions and Scrambled. She also guest-starred on TV shows, including ER, Friends, Blossom and Ally McBeal.

She was married three times, the first ending in divorce. She wed 227 co-star Kevin Peter Hall in 1988 — and their characters got married in the final season of the show, which ran from 1985 to '90. Hall died in 1991. She married Amini last year.