Sport Rangers

• Ace (เอส) / Boxing Red: Powered by light. Corresponds to courage, determination. Former amateur boxer who was recruited to be the leader of the Sport Rangers. At first he had doubts, but he soon joined the others in battle.
  • Roll call: "The power of a determined fist!"
  • Weapon: Thunder Fist
• Ice (ไอซ์) / Boxing Red II: Leader in season 2.
• Up (อัพ) / Soccer Yellow: Powered by electricity. Corresponds to creativity, wisdom. Former soccer player who acts as second in command. He is serious about the Sport Rangers' duty and often takes charge of the team.
  • Roll call: "The power of wise creativity!"
  • Weapon: Power Ball
• Ball (บอล) / Soccer Yellow II
• New (นิว) / Tennis Green: Powered by heart. Corresponds to enthusiasm, cheerfulness. Former tennis player who is playful and flirtatious. He seems to have some knowledge of English.
  • Roll call: "The power of an agile mind!"
  • Weapon: Racquet Sword
• Ten (เทน) / Tennis Green II: Second in command in season 2.
• Yu (ยู) / Swimming Blue: Powered by water. Corresponds to endurance, perseverance. Former swimmer who is like a caring older sister to her teammates and friends.
  • Roll call: "The power of surging water!"
  • Weapon: Double Cut Fin
• May (เมย์) / Gymnastic Pink: Powered by wind. Corresponds to kindheartedness, mercy. A former gymnast that may seem shy and withdrawn, but she has used her girlish figure to distract enemies.
  • Roll call: "The power of gentle vigor!"
  • Weapon: Maya Ribbon

Assistance

• Doctor Earth (ดร.เอิร์ธ) / Debola : Lead scientist of SSS; mentor to the Sport Rangers. He is responsible for creating all of the Sport Rangers' equipment.
• Darling (ดาร์ลิ่ง): Support A.I. of SSS.
• Hanuman (หนุมาน) : New Support A.I.

Other characters

• Po-Po: A clumsy photographer and friend of Ace.
• Uncle Cherry: An absent-minded man who runs a drink stand that the Sport Rangers often visit.
• Marine: (104) Yu's younger adopted sister. She was envious of Yu's swimming abilities, so she took a dark medal and transformed into a monster.
• Maria: (105, 106) A tennis player and friend of New. She has an allergy to sunlight that causes her vision to become blurred.
• Tone: (107) May's ex-boyfriend that had a dependence on drugs. He was captured and was forcibly put under the control of a dark medal.
• Professor Josh: (109, 110) A former member of SSS who left to coach a basketball team after a dispute. Dr. Earth sought him out to help in the development of the Spirit Robo.

Monsters

Season 1:

• Krotha Mountain monster (101-102)
• Octopus monster (103)
• Bird monster (Marine) (104)
• Spike monster (Matina) (105-106)
• Hula Hoop monster (Tone) (107)
• Laser monster (108)
• Buffalo monster (109)
• Syringe monster (107, 110)
• Hip Hop Monster (Champ) (111)
• Seeker Ranger (112)
• Zip monster (113)
• Frog monster (114)
• Butterfly monster (115)

Weapons/Attacks

• Star Gate Judgmentation: The team's first finishing attack. Capable of being used with only four members in episode 1, but not as effective. After Boxing Red joined the team in episode 2, they used it again to finish Krotha Mountain monster.
• Super Attack Ball: The team's second finishing attack, received in episode 3. To be summoned, Soccer Yellow throws a medal into the sky and the Super Attack Ball descends from the Moon. It is then passed from member to member and Boxing Red punches it into the enemy. The Sport Rangers' first attempt to use the Super Attack Ball was unsuccessful, they were unable to smoothly pass it to each other. To improve on their teamwork, they lined up with their legs strapped to the person next to them and tried to run together. With their new team skills, they were able to complete the combination attack during their second try.

Mecha

• Spirit Robo: The team's giant mecha that is composed of the five Spirit Fighters. It was developed by Dr. Earth with the assistance of Professor Josh in episode 10. Its main weapon is the sword, which performs its finishing move which is called the Meteor Storm Slash. The Spirit Robo is similar to several recent Super Sentai combining robos & Power Ranger Megazords (starting with the Senpuujin from "Ninpuu Sentai Hurricanger" in 2002 & Storm Megazord from Power Rangers Ninja Storm in 2003) in that the Sport Rangers remain in their individual cockpits rather coming together into a single cockpit when the combination is formed.
  • Spirit Fighter Lead: Boxing Red's vehicle that forms the chest.
  • Spirit Fighter Brain: Soccer Yellow's vehicle that forms the legs.
  • Spirit Fighter Heart: Tennis Green's vehicle that forms the right arm.
  • Spirit Fighter Strong: Swimming Blue's vehicle that forms the left arm and the shield.
  • Spirit Fighter Base: Gymnastic Pink's vehicle that forms the torso, the sword, and the head.