Did Sasha Alexander appear on NCIS as another character?

I'm watching an NCIS marathon on the USA network.

Season 11, episode 13, "Double Back".

Tony just met a woman who works for another agency. They traded barbs briefly, and after she leaves Tony says to Bishop 'She reminds me of someone else, someone who's irritating...can't remember who, tho'.'

I'm guessing Tony was meant to be thinking of Kate. Was it Sasha Alexander? Her hair was different, and it's been a long time. I'm not sure.

Does anyone know if she returned briefly to play another character?


EDIT:
Never mind. Actress Alanna Ubach as Sophia Martinez. Sorry.