Shannon Cochran  Shannon Cochran (born August 7, 1958) is an American actress. While she has numerous credits to her name, she is particularly recognizable as having played the mysterious Anna Morgan in the popular 2002 film "The Ring". In 1997, Cochran entered the Star Trek world as the Klingon Sirella, daughter of Linkasa and wife of General Martok, on "". Cochran played Pam Beesly's mother in "The Office" episode "Sexual Harassment" (later replaced by Linda Purl).