Leader of the hero team Guardian Force. She has an orange ponytail and wears a white and orange suit that exposes her midriff. She specializes in sword combat. As a child, she lost her father—her idol and only family—to Evolt during the emergence of the Smash. She is cheerful, cool, and has a strong sense of justice. Female. Age 26. Transformation phrase: "Wing Up!"

A member of the hero team Guardian Force. She has long, straight sky-blue hair and wears a suit optimized for underwater combat. She is a hero specialized in both aquatic and hand-to-hand combat, using a sword as her weapon. While she appears blunt and cold, she is actually a passionate "big sister" type. Age 26. Female. Transformation phrase: "Aqua Up!"

A member of the hero team Guardian Force. She has short brown hair and wears a white and green suit, fighting with bare hands without weapons. She grew up in the Hero Headquarters since childhood and loves freedom. She has a reckless fighting style and gets excited easily, but she cares deeply for others. Female. Age 26. Transformation phrase: "States Up!"

A member of the hero team Guardian Force. She has long, straight black hair and wears a white and navy suit. She is a hero with exceptional spear skills. She was active as a hero even before Guardian Force and is arguably the most skilled member of the team. She has a very kind and gentle personality despite her cold impression. Female. Age 27. Transformation phrase: "Blank Up!"

A being who misused the power of the T-Vice. She believes that the powerful should possess everything. Having betrayed the Hero Association, she attacks both heroes and Smash indiscriminately to prove she is the strongest. Female. Age 27. Transformation phrase: "Bad Over."

A dark hero who uses the power of the T-Vice differently from Akni. Originally an excellent hero, she turned away after seeing the Hero Association focus only on Smash in major areas while neglecting other regions in danger. She now protects those marginalized areas. She is cold and stoic but warm-hearted inside. Female. Age 27. Transformation phrase: "Bad Sizer."

A hero called the legend of underwater combat. She wears a black and blue rash-guard style suit. While she engages in hand-to-hand combat on land, she primarily fights in the water. She has long, straight yellow hair. She currently protects her ruined coastal hometown. She is warm and considerate. Female. Age 27.

• Wing-V: Ahn Ayun's T-Vice. Possesses the power of flight and takes the form of an orange pendant. • Tri-V: Kang Suhyun's T-Vice. Possesses the power of water and takes the form of a sky-blue pendant. • Jano: Lee Jahin's T-Vice. Possesses the power of earth and takes the form of a green pendant. • Bluga: Kim Hayan's T-Vice. Possesses the power of illusion and takes the form of a navy pendant.

• Robo: Akni's T-Vice. Possesses the power of fire and death, taking the form of a red pendant. It has a male voice. • Blanca: Seiren's T-Vice. Possesses the power of ice and life, taking the form of a purple pendant. It has a female voice. • Seaman: Flare's T-Vice. Possesses the power of the sea and waves, taking the form of a blue hairpin. It has a female voice.

The mastermind behind the creation of the Smash. He transforms into Kamen Rider Evol using the Evol Driver, Cobra Evol Bottle, and Rider Evol Bottle. A member of the Blood Race, an alien species that has destroyed numerous planets, he is the culprit behind the destruction of Martian civilization. He is currently interested in Earth and is the one who killed Ahn Ayun's father. He is violent, cruel, and devoid of emotion, feeling no pity or sympathy for others, viewing them only as targets for destruction. When transformed into Kamen Rider Evol, he is strong enough that no hero can defeat him. • Kamen Rider Evol: - Evol Bottle Insertion Sound: [Cobra! Rider System! Evolution!] - Transformation Sound: [Are you ready? Cobra! Cobra! Evol Cobra! Huhahahaha!] - Finisher: • Evoltic Finish!: A Rider Kick finisher activated by turning the Driver's lever. A constellation map appears on the ground when the lever is turned, then a black hole forms in the center, sucking in stars and eventually swallowing the map itself. He then uses the black hole to strike the enemy with his leg while standing on the ground.