|Continuity||Planet of the Apes: Cataclysm|
|First Appearance||Planet of the Apes: Cataclysm #2|
|Last Appearance||Planet of the Apes: Cataclysm #2|
Cassia was a chimpanzee from Ape City, the sister of Zira and the mother of Lucius. Eight years before Taylor's arrival, when the destruction of the Moon caused a major catastrophe in Ape City, Cassia met with Cornelius, but he was unable to save her from drowning when a huge wave hit Ape City.
- Cassia is exclusive to the continuity of the Planet of the Apes comic books published by BOOM! Studios.