Raj is about to come down with a potentially serious case of puppy love.

TVLine has learned exclusively that Lost alum Tania Raymonde is set to guest star (and possibly recur) on The Big Bang Theory as a new romantic prospect for Kunal Nayyar’s intimacy-addled alter ego.

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Raymonde, whose more recent credits have included Chicago Fire and Switched At Birth, will play a cute and somewhat surly veterinarian who ends up taking care of Raj’s ailing dog Cinnamon (a role I first told you about in last week’s Ask Ausiello).

She’ll debut in next month’s Valentine’s Day episode.