Allen Leech as Tom Branson in Downton Abbey

Allen Leech as Tom Branson in Downton Abbey

Who knows more about Downton Abbey? Actor Allen Leech or superfan Josh Groban. Watch this hilarious video to find out

He was the hero of the recent Downton Abbey movie, and now Allen Leech has once again shown his star quality by quizzing Downton superfan Josh Groban.

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