Rin has a different personality than Catherine and Katherine McBride. Rin has a gentle and obedient personality and lacks social etiquette. Rin helps support Vincent Brooks through the nightmares with their own perspective on events.
The Trivia for Tonight.....
GameGrumps made a joke regarding a third Catherine in one of their videos. This has resulted in fans giving Rin the nickname "Qatherine".
There is speculation that Rin may be transgender like Erica Anderson, or a male cross-dresser. A recent trailer apparently shows Vincent surprised while looking at Rin unclothed. This has resulted in the fan-nickname "Trapthrine." While the term "trap" is usually used in a joking manner, many members and allies of the LGBT+ community consider it denigratory, thus adding more controversy to the issue of Rin's debatable status.
Although much of Rin's role and portrayal in the game is unseen, Rin has stirred a lot of controversy. There are many fans concerned about how Rin will be portrayed, especially since Erica is interpreted by many as "problematic."