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Arnold Underwood is a fictional character portrayed by Peter Cartwright in the TV series Doctor Who.
In the first episode they appeared in, titled The Power of Three (season 7), they were 77 years old.
They appear in 1 episodes out of a total of 166 aired

Arnold Underwood

by Peter Cartwright

character

Episodes1

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    The Power of Three
    episode S7.E4 september 2012
    Earth is suddenly visited by millions of small black cubes of unknown origin. The Doctor joins Amy, Rory and Rory's father, Brian, to help discover what these cubes bring for humanity.