There aren't going to be many Qs, I think, whatever the game. The only one I can come up with here is Quentin Jardine, which we used for J.
If no one has any offers, I'll suggest John Buchan (The 39 Steps) for J instead, though I think there's more plenty of choice here. (I really do mean John this time!) And make Jardine the Q.
In which case someone could suggest an R.
What do you think?