Two (The Ark)

Two was the second-in command of the Monoids, during and after their revolution against the humans on the Ark.

Two's name was based on rank; he was second only to One. His communicator had the number 2 written on it, an indication of this rank. Two scouted Refusis II with the First Doctor, Dodo Chaplet, and the Yendom ahead of the main Monoid party. A Refusian used force to prevent him breaking objects in a rage.

Two was forced to kill Yendom after Yendom discovered the Monoids weren't going to take the Guardians down to Refusis.

Two reported back to the Ark and was about to tell them about the Refusians when a Refusian killed him by having his landing craft explode. When the main party landed, other Monoids found the wreckage of the landing craft. (TV: The Ark)

Behind the scenes

 * While the credits never make clear which of the Monoid actors (Edmund Coulter, Frank George, Ralph Carrigan and John Caesar) played which Monoid, the original paperwork indicates that Two was played by Carrigan.