|Full name||Marcus Williams|
|Portrayed by||Clarence Gilyard Jr.|
LTJG Marcus "Sundown" Williams is a student at TOPGUN. He is first seen at the bar when Maverick & Goose sing to Charlie he joins in too. He later temporarily became Maverick's R.I.O. shortly after Goose's death. He & Maverick would have a fallout because of him still being upset over Goose's death. He is last seen at the TOP GUN graduation ceremony.