Wonder GirlBack to Heroes Main > Wonder Girl
Real Identity: Cassandra "Cassie" Sandsmark
Affiliation(s): The Team
Appearance(s): Happy New Year, Alienated, Beneath, Depths, Satisfaction, Before The Dawn, War, The Hunt, Intervention, Summit, and Endgame
Appearances (Comics): Players Chapter One, Players Chapter Two, Players Chapter Three, Players Chapter Four, Players Chapter Five, and Players Chapter Six
Powers/Skills: Enhanced Physical Attributes, Flight, and Unarmed Combat
Voiced By: Mae Whitman
Cassandra Sandsmark is the daughter of archaeologist Dr. Helena Sandsmark and the Greek god Zeus. At some point, Sandsmark discovered she had super powers. She wanted to be a hero but didn't know how. Sandsmark became Wonder Girl, protege of Wonder Woman, and was recruited to the Team. She was trained by Wonder Woman, Nightwing, and others. A couple months later, on December 1st, Team Year Five, Wonder Girl was thrilled to be chosen by Nightwing to accompany him and Sphere on an Alpha Squad mission. They flew to El Paso to recruit the new Blue Beetle to the Team. Nightwing felt Wonder Girl, the newest member of the Team, was best suited to recruit the next potential member. It didn't hurt that she stood a better chance of not triggering a fight or flight incident. Just as Jaime Reyes arrived at Rio Grande High School, Wonder Girl approached him as Nightwing moved in. On January 1st, Team Year Six, she and Batgirl were assigned to Beta Squad and engaged Lobo in the United Nations Headquarters. Eventually, Lobo got the upperhand on her.
On January 4th, Wonder Girl and Nightwing raided a Krolotean base in Philadelphia. On January 6th, Wonder Girl was assigned to Delta Squad for the Malina Island mission. After letting herself become distracted by Wonder Woman's moves, Wonder Girl recovered and began to help taking out the Mechs. On January 26th, Wonder Girl was present to say goodbye to Wonder Woman as the League left for Rimbor. Wonder Girl wished she could go but Wonder Woman believed her mother wouldn't approve. On February 19th, Wonder Girl was assigned to an all-female Alpha Squad. Wonder Girl's lack of stealth garnered her the role of look out. She soon sighted Psimon, Devastation, Icicle Junior, Mammoth, and Shimmer. Wonder Girl infiltrated a hangar and warned Miss Martian. However, while seeking out Bumblebee, she was found out by Devastation. After the squad regrouped, Wonder Girl ripped off the secret hangar doors from a secret runway and cleared Devastation and Mammoth from a plane piloted by Batgirl.
On March 30th, Wonder Girl tried to rally the liberated teenagers onto the Bio-Ship but an agent of the Reach intervened. Wonder Girl dubbed him Black Beetle and warned him to back down. However, Black Beetle made short work of the Team and slammed Wonder Girl into a wall several times and rendered her unconscious. On May 26th, Wonder Girl was assigned to Alpha Squad with Superboy, Wolf, and Arsenal and tasked with fighting Mongul. Once Mongul was rendered unconscious, Wonder Girl tied him up with her lasso. On June 14th, Wonder Girl joined Beast Boy and Robin in helping with the operation to free Blue Beetle from Reach control and fought against Green Beetle. On June 19th, Wonder Girl took part in the Santa Prisca mission. She took the place of a League of Shadows soldier along with Robin and Impulse. On June 20th, Wonder Girl was assigned to Tau Squad with Robin to disable a Magnetic Field Disrupter. In the face of the impending destruction of Earth brought on by the Reach, Wonder Girl summoned up the courage to kiss Robin. After the crisis was averted, they started dating.