A former Power Rangers TV actor has pleaded guilty to killing his roommate, who was stabbed to death with a sword.

Ricardo Medina, 38, entered a plea Thursday in Los Angeles County Superior Court to voluntary manslaughter with the use of a sword.

He faces six years in state prison.

Prosecutors say Medina stabbed Joshua Sutter several times in the abdomen two years ago at their house in Green Valley, a mountain town north of Los Angeles.

The two had argued over Medina's girlfriend.

Medina played the Red Lion Wild Force Ranger on Power Rangers Wild Force in 2002. He was the voice of Deker on Power Rangers Samurai in 2011 and 2012.