Diana, Steve and Joe Atkinson (Norman Burton), a weathered IADC agent, received their orders from a "Charlie's Angels-like" character who is heard but never seen. Diana and Steve would go out and work the field while Joe assisted from the office. The Atkinson character was dropped after the ninth episode of this season, and Steve was given a promotion, becoming IADC Director, and Diana's boss, in the process. This promotion for Steve Trevor meant that Lyle Waggoner was seen less in subsequent episodes for the remainder of the series' run. In this season, the computer IRAC (Information Retrieval Associative Computer), more informally known as "Ira," was introduced: its first appearance is in season 2, episode 1, where Diana introduces her Diana Prince identity into its records, over IRAC's protests. Ira was the IADC's super-intelligent computer, who deduces that Diana Prince is really Wonder Woman, although he never shares this information with anyone, except Diana herself. Saundra Sharp joined the cast as Eve, Steve's assistant (the job held by Diana at the start of the season). Towards the end of the season, in the episode "IRAC is Missing," a small mobile robot called Rover was added for comic relief. An offshoot of IRAC who performs duties such as delivering coffee and sorting mail, Rover speaks with a high-pitched voice, occasionally makes "Beep Beep" sounds and, like IRAC, is aware that Wonder Woman's secret identity is Diana Prince.
Coming to America for the first time, Wonder Woman comes upon a wailing army nurse. Inquiring about her state, she finds that the nurse wanted to leave for South America with her fiancé but was unable due to shortage of money. As both of them looked identical and Wonder Woman needed a job and a valid identity to look after Steve (who was admitted in the same army hospital), she gives her the money she had earned earlier to help her go to her fiancé in exchange for her credentials. The nurse reveals her name as Diana Prince, and thus, Wonder Woman's secret identity was created, and she began working as a nurse in the army.