- Age: 17
- Ethnic origin: Unknown
- Place of origin: L3 colony cluster
- Height: 164 cm
- Weight: 46 kg
- Eye color: Gray
- Hair color: Reddish Brown
- Birth date: 178 A.C.
Catherine Bloom
"You didn't think about us, the people you'd leave behind! We'd have to keep on living in sorrow!"
Catherine is a talented acrobat and knife thrower in a traveling space circus. She is beautiful and kind; after experiencing a lifetime of violence, she only desires peace and fears for those in her life who would fight. After meeting Trowa, she developed a familial sense of protection for him, not realizing he was actually her biological brother. Seeing everything Trowa went through, Catherine disliked the company he kept, believing they were the corrupting influence for his behavior.