- Who's there?
- Doctor.
:lol::lol::lol:
— But I am the doctor!
— Doctor who?
— Who's on first.
— Who's on the second then?
— Another One, that's who.
— Any Who will not do.
— He's just an actor, mate, and they keep changing them all the time. ;)
Who are you? (who, who, who, who) - The Who