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. When the First Doctor and his companions arrived on the ship, they thought Maitland and Carol Richmond were dead. Instead, they were being controlled by the Sensorites. Maitland and Carol found it hard to resist the Sensorite influence in their minds.

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