Ray Liotta has made a career out of playing unnerving characters, a talent he puts to good use on NBC's Shades of Blue. According to Liotta's castmates, his portrayal of corrupt cop Wozniak is so convincing, sometimes even they forget Liotta isn't actually an unstable murderer.

"Me and Ray were doing a scene in the garage where Ray yells out, 'There's a rat! There's a rat!' And Ray looks at me and I forget my line," says Hampton Fluker. "His stare is so intense that ... you forget that you're acting."

See what else Liotta's Shades of Blue co-stars have to say about him in the video above.

Shades of Blue airs Thursdays at 10/9c on NBC.