Phyllis Frelich has passed away at the age of 70.
According to The Hollywood Reporter, the deaf actress, who won the best actress Tony Award in 1980 for her performance in the best play winner 'Children of a Lesser God', had been struggling with progressive supranuclear palsy, which is a rare degenerative neurological disease for which there are no treatments.
Frelich also appeared on such TV series as Barney Miller, Gimme a Break!, Spenser: For Hire, Hunter, L.A. Law, Pacific Blue, ER, Diagnosis Murder and, most recently, in a 2011 episode of CSI: Crime Scene Investigation as the mother of Gil Grissom.
