Swan White operates within the Research and Development Department of the Gutsy Galaxy Guard (GGG). She is the younger sister of Stallion White, who assists Professor Raiga Shishioh in GGG's Second Order Room. An American national, Swan speaks multiple languages, including Japanese, though her usage of Japanese exhibits noticeable awkwardness compared to native speakers within GGG, reflecting her non-native background. She also possesses martial arts skills.

Primarily, she serves as an assistant to Dr. Leo Shishioh, GGG's Executive Supervisor and scientist, working from the GGG Orbit Base. Following the original series and preceding the sequel OVA *The King of Braves GaoGaiGar FINAL*, she experienced a brief transfer to GGG America before swiftly returning to her Orbit Base duties.

During the climax of *FINAL*, her personal red pendant is revealed to be one half of "The Key to Victory", functioning as a plate lock component. Combined with Koutarou Taiga's pendant key and matching plate lock, the two parts form the characters for "Victory", unsealing and activating GGG's critical Goldion Crusher weapon system.

Swan White has yellow or blonde hair, blue eyes, blood type A, and recorded measurements of 98-59-92.