Lucy Lawless may have been tenacious on screen as first Xena in 'Xena: Warrior Princess' and then in 'Spartacus: Blood and Sand' but she proved her mettle in a far more serious situation last week as she was among a group of Greenpeace activists arrested four days after climbing aboard an oil-drilling ship to prevent it from leaving a New Zealand dock. The group had assembled atop a 174-foot drilling tower of the Shell-chartered ship which was moored at Port Taranaki - it had been due to drill exploratory wells in the Arctic.

Lawless was one of seven arrested and charged with burglary, all have since been released and are awaiting a court hearing. On Friday the actress had spoken to The Press Association and said of the stand "I've got three kids. My sole biological reason for being on this planet is to ensure that they can flourish, and they can't do that in a filthy, degraded environment," adding "We need to stand up while we still can."

Lawless initially made her name in the aforementioned 'Xena,' show which for a time propelled her to true A-list status. More recently she appeared in the 'Spartacus' TV show in 2010, based on the life of the famous gladiator. Lawless played Lucretia who between her and her husband own a fellow gladiator, a role she's set to return to in the new season having won a Saturn Award for Best Supporting Actress for the role last year.