Sgt Russell, The Doctor and others in “The Anachronauts”

If these Time Lords are your friends, why don't you wait for them?

You don't understand, Mister Russell I must go! Please!

[With pistols drawn] You stay here with us, my friend.

Look, I am not going to argue. Jamie, Zoe, Cartsairs, into the machine.

Jamie

But, Doctor, he's not joking, y'know!

For once, Jamie, do as you are told!

You move and I kill you!

Then you will just have to kill me, Mister Villar.

Well, Mister Doctor, that is just what I will do.

You can't shoot him in the back. He's helped us too much.

The back, the front, what's the difference?

It's too late now anyway.

Don't Worry. When the Time Lords get him, he'll wish you had killed him.