Quoting Wookieepedia:In Knights of the Old Republic, the Cathar Jedi Juhani speaks Basic, albeit with a heavy Slavic-like accent, with rolled "r"s and "w"s that sound like "v"s. Murghir, a bounty hunter and foe in the Great Hunt encountered by the Bounty Hunter class in The Old Republic, also speaks with such an accent. It is possible that this is meant to represent a Catharian accent. However, a Cathar companion of the Trooper class in TOR, Aric Jorgan, and a Cathar Jedi Master, Ryen had no such accents.
So Juhani isn't the one character, there's also Murghir. What I found interesting is that females speak with such accent, while males do not (or at least the ones in SWTOR don't). Also, there was once an explanation that Aric Jorgan doesn't speak with such accent because he wasn't born on Cathar.
I don't think that the accent is necessary, but it'd be an interesting addition. Also, you used the term actress, SH. Ferroh is a male.
@JC2, I meant a screenshot that is attached to this blog. You wrote "as seen on a screenshot" when you mentioned the misspelling.