Popular ABC drama Once Upon A Time has cast Sinqua Walls as Sir Lancelot, for two episodes of its upcoming second season.

The character is being described as “sword for hire with nothing to lose".

Walls may be known to most as Boyd on MTV's Teen Wolf, but has also previously appeared in The Secret Life of the American Teenager, Californication, Friday Night Lights and CSI.

In 2011, Walls co-starred in the horror film Shark Night 3D.