Just to complete this
, bit like my marriage it fizzled out miserably
Trevor the turtle is the odd one out. He has never appeared in a film with 'turtle' in the title. The other 3 have all appeared in films with 'turtle' in the title.
Ben Kingsley - Turtle Diary
Jack Thompson - Turtle Beach
Ronald Reagan - The Voice of the Turtle
Well, the idea works on Have I Got News For You in the UK