The Rockets

Oswald "Otto" Rocket : the nine-year old main protagonist, and Twister's best friend, Otto is an obsessive, compulsive, and greatly successful athlete, whose arrogant attitude and short-sighted judgment often get him into trouble, though he always makes things right in the end. Otto is usually seen to be the most driven and intense in skateboarding, surfing, etc.

Maurice "Twister" Rodriguez: Otto's best friend, a "daredevil" on wheels, aspiring "videographer," and known for exhibiting a notable lack of intelligence, "Twister" does not like being called by his real name. He is often seen being teased by his older brother Lars. Twister has proven to be clever despite his sometimes absent-mindedness.

Sam "Squid" Dullard: a native of Kansas, who, while not as athletically gifted as the others, has found a niche as the brains and conscience of the group and also a "rock-solid" goalie when they play hockey ("New Squid in Town", "Power Play"). Sam's reputation of being the smartest member of the group is, at times, one of his flaws. The character of Sam is based on the show's creator. Sam's mom is over-protective, and she once forced Sam to skip the 5th grade. Sam was originally the least athletic character, but eventually developed an expert level of surfing and decent abilities in other sports. His love for pancakes was also portrayed in many episodes. The "N" on his shirt stands for New York, since it was originally Sam's home state during character development, this was later changed to Kansas, but the N on his shirt still remained. Sam is the only member of the "gang" to use a long surfboard rather than the harder-to-ride shorter boards.

Regina "Reggie" Rocket (Shayna Fox): Otto's older sister by two years, Reggie is an aspiring publisher who, while no less competitive and skillful as an athlete, is of calmer disposition and greater maturity. Reggie is most noted for her "magazine" (dubbed "The Zine").