Thundra is a ruthless warrior woman from an alternative future timeline and a member of the Frightful Four serving as their powerhouse of the supervillain team.
Thundra has a slender but very muscular body, she has green eyes, red hair and has red lipstick on her lips. She has a golden tiara on her forehead.
She wears a two piece red outfit with yellow lines with one sleeve that covers only her right arm and reveals her belly button. She has a black belt with a golden buckle around her waist, red pants at the bottom is yellow with red lines and wears yellow boots.
Sometimes she is equipped with a spiked ball on a chain that is cuffed around her wrist. 
She boasts of her superstrength to anyone who stands in her way. She is also very ruthless and aggressive, as described by Spider-Man.
She was seen standing victorious over the Avengers in her timeline before ending up in the main timeline.
Doctor Octopus contacted the Frightful Four to kidnap Spider-Man. With the help of Trapster, Thundra and the Frightful Four (sans Trapster) tracked Spider-Man to Midtown High School. She got distracted by Peter, who changed to his spider costume. She fought with Spider-Man for a while and escaped before the police arrived.
After Spider-Man left S.H.I.E.L.D. Frightful Four (sans Trapster) ambushed Spider-Man for a rematch. They got the tide of the battle until Spider-Man's former teammates arrived and saved him, Thundra fought with Power Man, but eventually got trapped in Spider-Man's web. 
Powers and Abilities
- Superhuman Strength: Thundra in her own timeline, was engineered to be vastly superior to the enemy males in the gender wars. She is easily capable of overpowering Spider-Man and destroying large structures.
- Superhuman Durability: Thundra is highly resistant to both physical and magical injury. She has been hit by Spider-Man several times and has never shown any sign of injury.
- Superhuman Stamina: Thundra can exert herself for 24 hours or more before she even begins to show a sign of fatigue.
- Chained spiked ball
- Thundra is voiced by Tara Strong, who also voices Mary Jane Watson.
- She is the only female of the Frightful Four.
- This is Thundra's first animated appearance.