Is Pam Dawber the mysterious redhead that sometimes picks up Jethro in the convertible?

No, Pam Dawber is not the mysterious redhead who occasionally picks up Jethro in a convertible. The character you are referring to is likely a different actress or character from a specific show or film. Pam Dawber is best known for her role in the sitcom "Mork & Mindy" alongside Robin Williams. If you provide more context, I can help identify the correct character or actress.