Gary Lockwood

Dave: "You know of course though he's right about the 9000 series having a perfect operational record. They do."
Frank: "Unfortunately that sounds a little like famous last words."

Frank: "What the hell could we do?"
Dave: "Well we wouldn't have too many alternatives."
Frank: "I don't think we'd have any alternatives. There isn't a single aspect of ship operations that isn't under his control. If he were proven to be malfunctioning I wouldn't see how we'd have any choice but disconnection."
Dave: "I'm afraid I agree with you."

"He acts like he has genuine emotions. Uhm... of course he's programmed that way to make it easier for us to talk to him. But as to whether he has real feelings is something I don't think anyone can truthfully answer."

HAL: "I'm sorry, Frank, I think you missed it. Queen to Bishop 3, Bishop takes Queen, Knight takes Bishop. Mate."
Frank: "Huh. Yeah, looks like you're right. I resign."
HAL: "Thank you for a very enjoyable game."
Frank: "Yeah, thank you."