Los Angeles, Dec. 26 -- Karen Glass, the former Disney executive whose creative vision helped shape beloved films including "The Princess Diaries" and "Tuck Everlasting" and later became a prolific producer of holiday television movies, has died at the age of 63.

The sister of acclaimed radio host Ira Glass, Karen most recently executive-produced Lifetime's "A Pickleball Christmas", starring James Lafferty and Zibby Allen. She was reportedly developing a mahjong-themed holiday project at the time of her death. No cause of death has been disclosed.

According to previously published reports, Glass joined the Walt Disney Co. in 1989 as a member of the marketing team at Buena Vista Television. The following year, she began a five-year associa...