exploring the notion of soldiers who continued to fight after the war. Mervyn Pinfield was chosen to direct the first four episodes, as it was felt that he could evoke great visual atmosphere despite a small budget, while Frank Cox directed the final two episodes. Stephen Dartnell, who had previously appeared in The Keys of Marinus, was chosen to portray John, while Ilona Rodgers played his fiancée Carol. Canadian actor Lorne Cossette played Maitland, and John Bailey portrayed the Commander; Cox envisioned the Commander akin to Ben Gunn, a character from Robert Louis Stevenson's Treasure Island, and cast Bailey after seeing him in the play Pygmalion in April 1962. The other human survivors were played by Martyn Huntley and Giles Phibbs, friends from drama school who knew the director's secretary and were scheduled an interview. Design and filming Designer Raymond Cusick avoided the use of straight lines and right angles in his sets for the Sense Sphere, in deliberate contrast to the "alien" buildings of other stories. He recalled the work of architect Antoni Gaudí, who designed the Sagrada Família without using right angles. Cusick designed the spaceships sets to resemble the 1940s Dakota military aircraft. The Sensorite masks, created by costume designer Daphne Dare and make-up artist Jill Summers, were designed for short actors; Dare designed them to look like wise old men. Mouth flaps were concealed beneath the creatures' beards to allow the actors to speak. The Sensorites' feet were created by stretching out pieces of circular card at the end of the costume, making it difficult for the actors to walk. The hand tools used by the creatures were designed by Shawcraft Models. Model filming for The Sensorites took place in May 1964 at Ealing Studios. Rehearsals for the first episode took place from 25 to 28 March, and weekly recording for the serial began on 29 March at the BBC Television Centre in Studio 3. To achieve the effect of the spaceship rolling on its axis, the camera was rocked erratically. The third and sixth episodes were recorded at Lime Grove Studios in Studio D and the fifth in Studio G, while the fourth was recorded at the Television Centre in Studio 4. Jacqueline Hill was absent from the recording of the fourth and fifth episodes as she was on holiday. A final insert shot of the spaceship was recorded at Lime Grove Studio D on