Cassiopeia Mercury

Cassiopeia "Cassi" Mercury is Bolt's older sister. She studies medicine at the same university as Boon.
Cassi and Mel are very close, and she often serves as his confidante and an outlet for him to express his excitement about his adventures with Big Team. She also helped him keep his hero activities a secret from their parents, though they learned in season five that their parents had found out anyways.
Cassi can often be very stern and sarcastic, especially when confronting Mel about his dangerous and/or stupid behavior, but cares very deeply about her brother.
Cassi appears most often in Bolt's Journal.
Category:Characters
Category:NPC
Category:B-Verse