Blastr reports that the former Bionic Woman star has landed a recurring role in the series.
She will play the in-house doctor Vanessa Calder, a possible love interest for Artie (Saul Rubinek).
"I found [Warehouse 13] a really fun concept," Wagner said. "Very creative. And the visuals, the way it's shot and the chemistry of the actors just really impressed me. It's really fun. And in its own way, very current and very today."
She added: "It felt a lot to me like The Bionic Woman in that, which is what attracted me to want to take the part and do a little cameo, which of course now is kind of turning into somewhat of a recurring Warehouse doctor."
Warehouse 13 continues on Tuesdays at 9/8c on Syfy.