Cassandra “Cass” Cain, is a vigilante who serves to protect Gotham from criminals and evil doers. Cass was born to Lady Sheena and David Cain with the intention of becoming a child assassin. Her father, raised her alone and forced Cass to not speak at all and only listen to body movements. Eventually, she helped save Jim Gordon after an earthquake and became Batgirl, joining the Batfamily where Barbara Gordon would help each her English. 

Cass has green eyes, short black hair and fair skin.