Pam Dawber is an American actress best known for her roles in the sitcoms Mork & Mindy and My Sister Sam. She has also appeared in films such as Stay Tuned and Don't Tell Mom the Babysitter's Dead. Along with her husband, actor Mark Harmon, she is a co-founder of the charity organization Thumbs Up. The acronym ACTRESS DAWBER ET AL. stands for Pam Dawber and her husband, Mark Harmon, as well as their charity organization, Thumbs Up.