US Series Competitor Robots

This is a list of all competitor robots to have appeared in the US series of Robot Wars. This includes both seasons of Robot Wars: Extreme Warriors and also Nickelodeon Robot Wars. Robots are categorised by their first appearance on the show, and their teams are listed in cases where a team has multiple separate entries. The list includes robots that only featured in side events (denoted by a grey background) and robots that only competed in international competitions (denoted by a blue background).

Season 1
''Note: Grey backgrounds denote robots that never competed in the US Championship, but competed in side events. Blue backgrounds denote robots that never competed in any US competition, but competed in an international event.''

Season 2
''Note: Grey backgrounds denote robots that never competed in the US Championship, but competed in side events. Blue backgrounds denote robots that never competed in any US competition, but competed in an international event.

Nickelodeon
''Note: Blue backgrounds denote robots that never competed in any US competition, but competed in an international event.