Pam dawber was starring in her sitcom my sister sam after a successful run as the female lead of the hit show mork mindy opposite robin williams and mark harmon fresh from his own roles in st. Pamela dawber is an american actress best known for her lead television sitcom roles as mindy. Also she is best known for her role dawner samantha russell in my sister sam from. Her husband mark hamon is also a well known actor. Pam Dawber and Mark Harmon are married since 1987 Mark Harmon and Pam Dawber are 70-year-old couples who have been married since 1987. Intended for editorial use only.