James Callis James Callis

Another Battlestar Galactica alum is coming to Arrow!

James Callis, who portrayed Gaius Baltar on the cult sci-fi series, has landed a guest-starring role on an upcoming episode of Arrow, TVGuide.com has learned exclusively.

Callis will play The Dodger, an elusive international jewel thief who imposes his plans on the innocent, forcing them to carry out his crimes under duress. When the Sherwood Ruby goes missing in Starling City, the ensuing investigation leads Oliver (Stephen Amell) and Diggle (David Ramsey) straight to The Dodger, but apprehending him won't be as easy as they may have thought.

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No word yet if Callis' Dodger is the same villain-turned-Arrow ally as in the DC Comics.

Callis, whose credits include Eureka and Bridget Jones' Diary, will appear in an episode slated for sometime next year.

Arrow returns Wednesday, Jan. 16 at 8/7c on The CW.