Geek goddess Summer Glau has joined the cast of Arrow.

According to Entertainment Weekly the former Firefly star will have a recurring role in season two of the hit superhero drama as the Arrow’s latest nemesis.

31-year-old Glau will play Isabel Rochev, an executive who is interested in taking over Queen Consolidated. Both enigmatic and beautiful, Rochev is also described as "professionally dangerous".

In addition to Firefly, Glau's previous credits also include Dollhouse, Alphas, Terminator: The Sarah Connor Chronicles and The Cape. She also made an appearance as herself in an episode of The Big Bang Theory.

Arrow will return for its second season in October in the US, with Sky One following soon after in the UK.