Katrina Rawn (カタリナ・ラウラン) is a main character in Romancing SaGa 3. She is only playable in her scenario and cannot be recruited, but she does join both Mikhail and Harid briefly at the beginning of their stories.
Monica places great trust in Katrina, seeing as how she is her personal bodyguard. Mikhail places trust in her as the guardian of the Masquerade; a remnant of the Holy King given to the Loanne family. During the attempted Coup de etat by Baron Godwin, Katrina sent Monica away to protect her as Godwin was to use her as bait to lure Mikhail into a trap. Katrina is captured during the Coup and is able to escape the prison by placing the Jailer's key in an empty cell beforehand, presuming that they will throw her in there since the other cells are occupied. After she escapes she meets up with Harid and Mikhail in the middle of the reclamation of the castle and helps rout out the remainder of the monsters infesting it.
Several Days after the ordeal, Mikhail meets Katrina while she is outside, saying that he was concerned for her as a woman, causing her to let down her guard and give the Masquerade to Mikhail. It turns out that it was an imposter posing as Mikhail and tricks Katrina into handing over the Masquerade. The next day, she speaks with Mikhail about her failings, vows to find the Masquerade, and bring it back. However by taking this quest she must be exhiled from Loanne until she completes it.
- After beating the game with Katrina as the main character, the option to play as her with long hair and in her old clothes becomes available.