Tom Dekker

 was a human detective on Earth. He helped the Seventh Doctor against Agonal and the resurrected Three Who Rule, shooting the three vampires in the hearts before they could be fully reborn. (PROSE: Blood Harvest)

In 1936, he met the Doctor's prior incarnation in London when he emigrated over the ocean as head of a branch of the Pinkerton Detective but remained ignorant of the two Doctors' connection to each other. He helped the Doctor, Peri Brown and Winston Churchill thwart a conspiracy to keep King Edward VIII, who had Nazi sympathies on the throne. (PROSE: Players)

Dekker also attended the wedding of Bernice Summerfield and Jason Kane in Cheldon Bonniface on 24 April 2010. (PROSE: Happy Endings)