Lieutenant Arlene Galway was a female Human Starfleet officer who lived during the mid-23rd century. She served in the sciences division aboard the USS Enterprise under Captain James T. Kirk, during a historic five-year mission that starship undertook. She was born in 2243.
In 2267, she was a member of the landing party sent to Gamma Hydra IV to respond to a distress call. While on the surface, Galway was affected by a radiation sickness that caused hyper-accelerated aging. Among her symptoms was hearing loss, which she had never experienced before. When she approached Doctor Leonard McCoy about it, he suggested hypersonic treatment.
Later, McCoy suggested she lay down and rest in her quarters, but Galway was hesitant, fearing how she would appear when she awoke again. Captain Kirk, understanding her feelings, "ordered" her back to work, much to her relief. While leaving sickbay, she looked at herself in the mirror with dismay.
Galway was played by Beverly Washburn.
This character's first name was only given in the source's end credits. According to the final draft script for "The Deadly Years", she was listed in the cast portion as "Chief Arlene Galway, a doll in her mid-twenties." Galway's designation as "chief" was further clarified in the stage notes, which described her as the "chief biologist".
When Galway was prematurely aging, her first stage of aging was described in the script as having "looks older than sixty," while her final stage of aging was described as "She looks incredible old (80), hardly recognizable."