Hard spotlight up on God in centre stage. Other Gods fanned out behind him in darkness grouped according to pantheon. Buddha off to the side slightly in front of other gods.  

God opens his eyes
GOD: AHHHH! Where, where am I… There was a war, and I was there,  fighting my creation, and the scientists! The scientists… (turns and picks up Professor Grumbles who was just outside the spotlight, lights slowly up on the rest of the stage) What have you done Professor Grumbles
ZEUS: It’s ok, you’re safe now. Welcome to Olympia!
GOD: Olympia?
THOR: DINNAE LISTEN TEH HIM, YOU'RE IN VALHALA!
GOD: Ok i didn't get a word of that...
ISIS: Incorrect my frothing norse friend, we're clearly in the Afterlife.
GOD: WHAT THE HELL ARE YOU CRAZIES GOING ON ABOUT?
ISIS: Well... you're dead, like the rest of us.
Ra looks around at the rest of the deities assembled. All nod in agreement
GOD: That's preposterous, I am God and I don't die.
(Hermes runs on to give God a scroll then runs off, God unravels and reads it as Zeus talks, scroll says in big letters DEATH CERTIFICATE to audience)
ZEUS: Well thats what we thought too, but here we are.
GOD: And where are we?
ZEUS: we already said...
G cuts him off
GOD: Who are you anyway?
ZEUS: Zeus, leader of the greek gods, (gestures at the greeks)
G nods and then looks at the egyp tians, then the norse gods
ISIS: Isis, leader of the Egyptian gods
THOR: THOR, NORSE GOD-SKI!
GOD: What about that guy? points to Buddha sitting in the corner meditating
ISIS: Don't know, when he first arrived he was convinced he reached Nirvana, whatever that is... Now he's "meditating", claiming that he wants out.
GOD: (Excited) There's a way out?!
LOKI: HE'S STILL HERE ISN'T HE! (guffaws)
GOD: Wait, why am I nude?
ZEUS: Spirit realm, do you have many clothes with spirits?
GOD: So what’s with the hammer?
THOR: I’ll have you know this is the Mjolnir, my magical hammer imbued with immortal  spirit when it was forged by the Dwarves of legend.
GOD: And I suppose there’s a similar story for the stuff you guys have as well?
ISIS: Oh no, these are just contrived props to protect our modesty. (palm frond moving thing?)
(pause for “forgotten” line, Hermes runs on with scroll saying SCRIPT)
GOD: But with me here who is going to look after the world, my creation?
ZEUS: don't worry, They'll be fine, some other deity will come and take your place. When we died those wannabes took over for us. Jupiter and co, they're over there (slight malice in voice whilst pointing)
Roman gods nod hello in an very cold manner, the greek gods make some rude gestures in their general direction, which the romans return and then go back to talking to each other
GOD: oh so who replaced them?
MISC ROMAN GOD: You, you great pansy.
GOD: Oh... *awkward moment* So... who's replacing me?
LOKI: FLYING SPAGHETTI MONSTER!!! (cheerfully)
(lights up on left Juliet where FSM does FSM type things)