Well not quite! But he has been impressing the grand lady of trans-atlantic showbusiness with his manner during a recent trip to the Doctor Who set by Collins and her grandchildren.
The Dynasty star was persuaded (with some doggedness, it seems) by her grandchildren to arrange a tour of the BBC show’s set at Upper Boat in Wales, and went fully expecting to be bored by the backstage activities.
However Ms Collins soon became enamoured with Scottish actor and Doctor Who star David Tennant, after he dealt with her grandchildren’s questions about his famous character with such style.
"I have seldom met an actor more gracious and charming to visitors to a film set. For 15 minutes David Tennant patiently answered all the children’s questions.
"As one who has spent most of their adult life on a sound stage, I was feeling quite blase about visiting the set of Doctor Who.
She adds, "The thought amused me because of the intense excitement of nine-year-old Miel and Weston, four, my daughter Tara’s children, who had barely slept the previous night in breathless anticipation."
Moving on to Star Trek guest stars now Tennant…?