Nick Name
Civilian ID
Cassandra Eleanor "Cassie" Lang



Legal Status
Citizen of the United States with no criminal record.
Nation or Planet of Origin
New York, New York
Group Affiliation


Avengers Initiative

Young Avengers

Base of Operations
New York, New York
Eye Color
Hair Color
Known Powers

Mutation resulting in an ability to either shrink to the size of an insect or grow to over 40 tall.

Note: Lang's mutation is mostly likely the result of her father Scott Lang's (Ant-Man II) constant exposure to size-altering Pym Particles.

Common Enemies
Regularly Appearing
Young Avengers
First Appearance

Cassie Lang

Marvel Premier #47 (April, 1979)


Young Avengers #2 (May, 2005)


Cassie Lang

David Michelinie & John Byrne


Alan Heinberg & Jim Cheung


Scott Lang was an electronics engineer who had difficulty supporting his wife, Peggy Rae, and daughter, Cassandra. Resorting to burglary he was imprisoned for three years. While in prison he studied electronics in greater detail and was hired by Stark International upon his release. It was during his time in prison that his wife divorced him.

When Cassandra was diagnosed with a serious congenital heart condition, Lang turned to Dr. Erica Sondheim for help. When Dr. Sondheim was kidnapped by Darren Cross, president of Cross Technological Enterprises, to help correct his own heart condition, Lang burglarized the home of Dr. Henry Pym (Ant-Man I), stealing both the Ant-Man costume and shrinking gas canisters.

Scott Lang rescued Dr. Sondheim, who in turn saved Cassandra's life. Completing his mission, Lang returned the costume, but Pym, who had followed his exploits as Yellowjacket, insisted he keep the uniform and use it for the good of mankind as the world's smallest superhero,Ant-Man.

Cassandra spent most of her childhood with her father and admired his career with the Avengers as Ant-Man. When her mother gained custody of Cassandra, because of her father's superhero career, Cassandra became embittered toward her mother and step-father. After her father's death, the teenaged Cassandra resolved to runaway from home and join a group of teen heroes known as the Young Avengers, adopting the name Stature.