Steven Leonard "Steve" Trevor, Sr., was a commissioned officer in the United States Army Air Forces with the grade of major. He was a colleague of both Diana Prince and Etta Candy.
- This version of the character is exclusive to the continuity of the television series Wonder Woman and is an adaptation of Steve Trevor. The original character was created by William Moulton Marston and Harry G. Peter and first appeared in All-Star Comics #8.
- This version of Steve Trevor was acted out by Lyle Waggoner who also acted out the character's son, Steven Trevor, Jr. for the following seasons of the series.
- The details surrounding the death of Steve Trevor, Sr. remain largely unknown. What is known, however, is that Steve Sr. died some time prior to 1977.
Though Steve Trevor is shown in the DC Comics as being blond-haired, Lyle Waggoner, who acted out the role throughout the first season of the series and acted out Steve Trevor, Jr., for the following seasons, had dark hair.
- 18 Appearances of Steven Trevor, Sr. (Wonder Woman TV Series)
- 5 Images featuring Steven Trevor, Sr. (Wonder Woman TV Series)
- Quotations by or about Steven Trevor, Sr. (Wonder Woman TV Series)
- Character Gallery: Steven Trevor, Sr. (Wonder Woman TV Series)