The non-Kirby characters from Space that hail from different series.
Metroid: Samus Aran (Smash Bros., Samus Returns and Dread versions), Zero Suit Samus, Metroid, Ridley, Dark Samus, E.M.M.I.
Star Fox: Fox McCloud, Falco Lombardi, Wolf O'Donnell
F-Zero: Captain Falcon
