Walter is a skilled pilot and key member of the Blue Knight team, spearheading Earth's defense against extraterrestrial threats. He maintains a cool, collected demeanor under pressure and is renowned for his bravery in dangerous situations. Walter exhibits charm and confidence, coupled with a notable sense of humor that enhances his appeal, particularly in romantic encounters. Despite this charisma, he approaches relationships with respect and avoids manipulative tactics.

His unwavering loyalty to teammates and friends is paramount, driving him to willingly risk his life for their safety. Walter contributes vital strategic thinking and innovative problem-solving during critical missions. His exceptional piloting expertise is indispensable to Blue Knight operations, and he undertakes all responsibilities with serious dedication.

Within the series, Walter stands as the sole character identified as non-white or non-Asian. His background remains undefined, with no details available regarding character development across seasons, appearances in movies or OVAs, or involvement in spin-off media.