Credit: via Grant Gustin's Twitter Photo: Grant Gustin Headshot

If you happened to be watching CSI: Miami tonight — Sunday, January 29 — you may have noticed a familiar face: Glee’s Grant Gustin (Sebastian).

Or, more precisely, two of him! Grant played twin brothers Scott and Trent, sperm donor kids both suspected of murdering their biological father, on CSI: Miami Season 10, Episode 13: “Terminal Velocity.”

Our favorite scene from the episode? That weird Parent Trap-like moment when Grant (Scott) and Grant (Trent) meet in the station bathroom.
Scott: “This is weird.”
Trent: “Yeah.”
Scott: “You kill our donor dad?”
Trent: ...

Spoiler alert for those who haven’t seen the episode yet... but neither Scott or Trent ended up being the killer. It was their biological father’s vengeful wife. (Are we the only ones who were sort of hoping at least one of the Grants would turn out to be evil? That could have been kind of fun...)

So what did you think of Grant’s first TV foray outside of Glee? Take our poll and sound off!

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Credit: YouTube Photo: Promo for Glee's Grant Gustin on CSI Miami — He's Playing (Evil?) Twins! [VIDEO]