In a hypothetical transatlantic survey, the name David Tennant would draw the same reaction from both sides of the ocean, with respondents calling out "who" with equal conviction. The tone, though, carries the significant difference in identification, with the man in question bewildering Americans and beloved by the Brits.The Scottish actor is an icon in the United Kingdom, thanks in large part to his long residency as the titular Dr. Who, the humanoid traveler of space and time who has protected the earth in BBC adventures for the past five decades. An entertainment institution comparable to Star Trek in the United States, the show relaunched after a lengthy hiatus in 2005, with Tennant taking control of the flying police phone booth -- yes, that's how he gets around -- a year later.
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