Wonder Girl (Cassie Sandsmark) early Young Justice costume

Wonder Girl

(Cassie Sandsmark)

Power Level:
Game system: DC Heroes Role-Playing Game


Wonder Girl (Cassie Sandsmark) is one of DC Comics’ legacy Wonder Woman characters.

She appeared well after the original Wonder Girl (Donna Troy). Donna appeared in 1965 and Cassie in 1996.

These notes were taken around Young Justice 15. These are primarily technical notes, not a full-featured writeups.org profile. We’ll revisit them when we can.


  • Real Name: Cassie Sandsmark.
  • Marital Status: Single.
  • Known Relatives: Helena Sandsmark (mother).
  • Group Affiliation: Young Justice.
  • Base Of Operations: Gateway City.
  • Height: 5’4″ Weight: 100lbs.
  • Eyes: Blue Hair: Blonde



Cassie has been a long running character while younger in the Wonder Woman comic. Originally, she “borrowed” from Wonder Woman the Sandals of Hermes, as well as a magical belt, to go adventuring. These items granted her the ability to fly, and some degree of superhuman strength.

She did not fare very well on these early adventures, encountering the protomatrix Doomsday on the first. She was wounded during each of her early fights, but persevered.

Later, during a visit to Mount Olympus, she sought out Zeus for a private audience. Amused by her audacity, Zeus granted her metapowers, most likely for his own fun. She has since adventured several times with Young Justice, becoming good friends with Cissie Jones, also known as Arrowette.


Hehehe – her costume has been one of the most debated topics on the newsgroups. Most people hate it, but personally I like it.

Wonder Girl (Cassie Sandsmark) in Young Justice

As Wonder Girl, Cassie wears a shoulder length black wig, along with large sports goggles. Her jacket is a black leather jacket, which is open in the front, to show the Wonder woman symbol on her black T-shirt. A red G marks the lower right hand side of the symbol. She has a wide black belt, and wears white gloves with large cuffs.

Typically, her lower arms are bare (the jacket being pushed up to just below the elbows. Her shorts are a dark red, and appear to be thicker spandex. They reach to mid thigh. Often, but not always, she wears large white kneepads, to go with her white sneakers and socks.


Cassie is an outgoing, headstrong young woman. She is not quite as forthright as Cissie, but is not as shy as Secret. Since she has reached adolescence, she has lost much of her younger audacity, at least when around her peers.

Indeed, now she appears somewhat unsure of herself. The following quotes, when she was asked by Wonder Woman why she wasn’t wearing the costume given to her by Donna Troy, are the best example of this new uncertainty.

“Its a genuine superhero uniform worn by a genuine superhero ! I’d feel like a little leaguer using an autographed Babe Ruth baseball for batting practice.”

She is one of the combat powerhouses of Young Justice, and she is not afraid of physical combat. However, she is a follower, and not a leader, generally following the lead of one of the other team members.

At this point, she is “suffering” under a crush on Superboy, and could very well have a minor irrational attraction to SB.


“Leave [being a super-hero behind] ! Are you kidding ? What we’re doing here … It’s mythic ! We’re continuing an epic of heroism and adventure that goes back millennia ! How could anyone walk away from that ?”

Game Stats — DC Heroes RPG

Tell me more about the game stats

Wonder Girl

Dex: 05 Str: 09 Bod: 07 Motivation: Thrill of Adventure
Int: 04 Wil: 05 Min: 05 Occupation: Superhero – Teenager – Student
Inf: 05 Aur: 04 Spi: 05 Resources {or Wealth}: 001
Init: 016 HP: 25

Flight: 08

Martial Artist: 03

Wonder Woman (High), Young Justice (High), Artemis (High), Donna Troy (High).

Age: Young, Secret Identity, Misc. Loss Vulnerability Physical Attributes, Powers when being touched by her mother, Attack Vulnerability -2 cs versus edged weapons.

Design notes

The column shift vulnerability is based on a single issue – YJ 4, where she was scratched by a house cat. A bit later in that issue, she was slammed into the underside of a brick bypass, hard enough to crack the brick. She did not lose consciousness. Further developments in the comics has shed no light on the matter.

The loss vulnerability to her mom’s touch is based on someone’s comment on the list (I can’t remember who’s). I would like to know which WW comic this was shown in, so I can buy it for background reading.

By Richard Lyon.

Helper(s): Michael W Mattei.

Source of Character: Wonder Woman, Young Justice.