Former Xena: Warrior Princess star Lucy Lawless is returning to her action Tv roots by joining the cast of Marvel's Agents Of S.H.I.E.L.D..

Lawless has been added to the cast of the superhero series for its upcoming second season, however her role has yet to be revealed.

The actress spent six seasons as the formidable female fighter, but her more recent roles include guest-starring spots on Parks and Recreation and Top of the Lake.

Marvel's Agents of S.H.I.E.L.D., which kicks off its sophomore season in the U.S. on 23 September (14), is a spin-off based on Clark Gregg's Agent Coulson character from blockbuster Marvel movies including The Avengers and Iron Man.