Voyage to the Bottom of the Sea (TV series) as Admiral Park, a colleague of Nelson's who substituted for him. Basehart returned for "Return of the Phantom," the final episode of the season. The third season of "Voyage to the Bottom of the Sea" ran simultaneously with two other series produced by Irwin Allen, "Lost in Space" (in its second season) and "The Time Tunnel". The third season began with Dick Tufeld of "Lost in Space" playing an evil disembodied brain from outer space. The season continued with a werewolf story that is one of the few episodes to inspire a sequel. In one episode, the "Seaview"'s officers and
Voyage to the Bottom of the Sea the deepest surveyed spot in the world's oceans, and is located in the Mariana Trench, southwest of Guam. From February 16, 1960, to May 10, 1960, the submarine , under the command of Captain Edward L. Beach, Jr., made the first submerged circumnavigation of the world. "Triton" observed and photographed Guam extensively through her periscope during this mission, without being detected by the U.S. Navy on Guam. In the film, "Seaview" fires a missile from a position northwest of Guam to extinguish the "skyfire." At the time that "Voyage to the Bottom of the Sea" was made, the Van Allen