At first, X might come across as a tough guy, but deep down inside, he has a big heart. He cares about his family and friends, wanting to do anything to help them. He also gets upset when things come up in where he sees it, leading him to influence. He can be cocky at times, and he even lets his jealousy and temper get the best of him, which often leads him into trouble. He also is a big believer in what he sees, going to any team in which influences him.
Like Speed, he is a great driver and mostly uses his driving skills to get out of tough situations. He only uses the Shooting Star while racing.
Speed Racer Sr. (father)
Speed Racer Jr. (younger brother)
Pops Racer (paternal grandfather)
Mom Racer (paternal grandmother)
Tredwell (maternal grandfather)
Spritle Racer (uncle)
Rex Racer (uncle)
He is seen in all episodes except for "Video Essay," in which he only appears in flashbacks.
- X is the only character so far to have almost been killed by Zile.
- X is the third character to work for the Shadow Committee right behind Zile and the twins.
- X is the fourth character to see the Shadowy Woman followed by Zile, Annalise, and Lucy, but revealing who she is, while the others never knew who she is.
- X's evil racer name and called by the Shadow Committee is called, the Red Bolt.