Voice of Mrs. Wolowitz on 'The Big Bang Theory,' Carol Ann Susi, dies at age 62

This undated image provided by Warner Bros. Television shows a headshot of actress Carol Ann Susi. (AP Photo/Warner Bros. Television)

LOS ANGELES -- The actress best known for voicing the unseen Mrs. Wolowitz on the TV comedy "The Big Bang Theory" has died.

Carol Ann Susi's agent, Pam Ellis-Evenas, said the actress died in Los Angeles on Tuesday after a brief battle with cancer. She was 62.

The veteran character actress has made numerous guest appearances on TV shows since the 1970s.

On the "The Big Bang Theory," Susi wasn't seen on camera as the mother of Simon Helberg's character, Howard, but her character's loud voice with a Brooklyn accent was instantly recognizable.

The executive producers of the CBS sitcom say Susi was a beloved member of the "Big Bang Theory" family, and they praised her "immense talent and comedic timing."

Susi is survived by her brother, Michael Susi, and his wife, Connie.