Briefly: Nathan Fillion has signed on to play Hermes in Percy Jackson & the Olympians: Sea of Monsters, reports the Hollywood Reporter.

The star of ABC’s Castle, Fillion joins the returning cast of Logan Lerman as Percy, with Alexandra Daddario and Brandon T. Jackson also reprising roles. Diary of a Whimpy Kid director Thor Freudenthal is helming the picture.

For those unfamiliar with the story from author Rick Riordan, below is a brief synopsis of Sea of Monsters:

The son of Poseidon and his friends head into the Sea of Monsters to find the mythical Golden Fleece.

We’ll be sure to keep up-to-date on all casting and news regarding Sea of Monsters. Do you think Fillion is a good choice to play Hermes?