GURPS Zombie Apocalypse premade characters: help me with some concepts

[Tsumi]

Hi there guys,

I am planning to run a really short campaign (2 sessions) featuring a "Zombie Apocalypse".
Our normal game is a GURPS Fantasy game which we all enjoy, but almost all of our players are really into zombie movies (like the Romero movies).
So I would like to prepare 2 sessions in advance for when our normal GM isn't in the mood for GMing or for when the players just want to have a different night of roleplaying.

I want to create this mini-campaign in the style of the "Dawn of the Dead" remake, so this is what happens:
In a matter of days the continent changes from normal day to day life to a zombie apocalypse. I want the PC's to face and escape this new and horrible threat not by just bashing zombies (which is not without danger because of the risk of infection), but also put them up to some moral dilemma's and let them figure themselves out of dangerous situations with creative thinking.

This will require some extensive preparations from my side (making or finding maps, NPC's, moral dillema's and the overal plot and stuff). But what I also want to do is make premade characters, so that when we decide to run the campain, the players can quickly pick a character they like and start surviving.
I was thinking about making 8-10 150 point characters for the first session (just days after the zombie outbreak) and 5 "replacement" characters (160 points) for the second session months after the outbreak which they can use if their original character didn't survive the first session.

So this is where I hope you guys can come in:
Since there are a lot of creative minds on this forum it would be a tremendous help if you guys have idea's for character concepts so that the characters would have some depth to them (which is something I want the campain to be about). I you have any idea's, please post them!
You don't have to supply the full character sheet, I can make those myself (but if you want to make them, I welcome that!)
Ofcourse, if you have any other idea's or tips for me I appriciate that aswell!


P.S. I know Max Brook's zombie survival guide by heart, and my copy of his novel "World War Z" will be arriving in a matter of days.