: The episode explores the risks of "sharing" one's consciousness and the corrupting nature of absolute power.
: William Shatner and Leonard Nimoy receive praise for their dual roles, portraying both their standard characters and the distinct, often regal or sinister, personalities of the ancient aliens. Star_Trek_20_Return_to_Tomorrow_Ritorno_al_Doma...
: This episode features one of Kirk’s most famous monologues, where he argues that the potential for scientific advancement justifies the extreme personal risk to the crew. Production Notes : The episode explores the risks of "sharing"
: Ralph Senensky directed the episode, focusing on the psychological tension between the guests and their hosts. Production Notes : Ralph Senensky directed the episode,
: Diana Muldaur makes her first Star Trek appearance as Dr. Ann Mulhall. She would later return as Dr. Miranda Jones in "Is There in Truth No Beauty?" and eventually play Dr. Katherine Pulaski in Star Trek: The Next Generation .