Maitland (The Sensorites)

Captain Maitland was commander of an Earth ship that discovered the Sense Sphere. The entire crew were held prisoner on their ship by the Sensorites.

Biogrphy
Maitland remained aboard the ship with a Sensorite Warrior while the others travelled down to the Sense Sphere, and was allowed to return to Earth with Carol and John after promising to keep the Sensorites' existence secret. (TV: The Sensorites)