Jon Callaway

Dr. Humphries: ...Your brother is arbitrary, violent and psychopathic. Probably paranoid schizophrenic. What I'm trying to tell you is, he's off his fucking rocker.

[thrusts a bottle of pills to Reggie]

Dr. Humphries: It's called Stematol. You need to give it to your brother twice a day. Twice a day or there's going to be fucking trouble!

Ronald Kray: [on his twin stabbing Jack] Why would you do that?

Reggie Kray: [walks up so he is pressing his forehead against his twin] Because I CAN'T KILL YOU! No matter how much I fucking want to!