You can gather from context that Tasia is Mrs. Chekhov, but she's also Iaroslav's first cousin on the Russian side of his family -- she met Chekhov through him. I've have to draw her at some point, even if she never shows up in-comic. She's a good welder, as a snippet of character trivia.
Speaking of snippets of character trivia, if any of you guys have any questions for any of them, ask away, and I'll draw their responses. :)
Sorry, I spent the past few days in a pleasant tryptophan -induced haze. I'll get the next page up ASAP. That being said, thanks (as always) for the lovely comments, and for Tantz Aerine: here and here.