Explorer

The Seventh Doctor, Ace, Captain Cook, and Mags; four explorers. (TV: The Greatest Show in the Galaxy)

An explorer was someone who went to places about which little was known to learn more about them.

Ulysses was a Time Lord explorer. (PROSE: The Gallifrey Chronicles)

The First Doctor, Ian, Barbara and Susan encountered Venetian trader and explorer Marco Polo on the Plain of Pamir in 1289. (TV: Marco Polo)

Professor Edward Travers helped the Second Doctor defeat the Great Intelligence. (TV: The Abominable Snowmen)

Ernest Shackleton met the Tenth Doctor and Martha Jones on an expedition in Antarctica, where they encountered the Skith. (COMIC: The First)

The Eleventh Doctor recruited Edwardian explorer John Riddell from 1902 to answer a 24th century distress call. (TV: Dinosaurs on a Spaceship)

Shalabar Scone was a legendary explorer on Lahn. (COMIC: The Spice Route)

An explorer once became trapped in a time loop after entering the Time Fracture. (PROSE: Hello And Congratulations!)

Prior to the Last Great Time War, the Unon were a race of explorers. (PROSE: Dalek: The Astounding Untold History of the Greatest Enemies of the Universe)