Archetypes and even NPCs in Shadowrun often lack some originality (or totaly lack in fact.).
As a GM, i hate having characters being "just another sam" or "just another decker", so i always encourage players to make interesting character profiles.
While most profiles will only be interesting in regards to their background, some are interesting technicaly speaking.
Here are a few exemples, and i hope some of you will give a few

- Security/Military Mage :
This is clearly a "support" character.
His spells are mainly barriers and detection spells, he stays behind and directs the team through mind net spell (cant be tapped). He has a good base of technical skill to deal basic electronic warfare, control a few surveillance drones backed up by spirits and watchers.
From a background point of view, this suits perfectly to a former corp security mage, or former military/mercenary mage/officer.
- Homeless Street Shaman :
While the "street or squatter lifestyle" might be often used, this concept is in a lot of ways based on this lifestyle. The shaman lives in its paper boxes on the street, with a small community of homeless peoples. With his trolley he hits the streets, begging for a few newyens to executives. What a great cover of a runner ? While you might suspect a beggar to steal your walet, would you suspect him of being a top runner ?
Its not his disguise : it is his lifestyle, because his totem has guided him that way (Rat or Coyote would be the best).
Great fun with this type of character

Skills include hight stealth and urban survival, and can be more than usefull. Contacts play a big role, and you can expect very exotic ones (like a ghoul for exemple)
- Disgraced Elven Artist :
This is a perfect background for a Social Adept. Formerly evolving into elven nation's highest circles, he was cast out for some insignificant faux pas, ripped of his name and rights in the Tir, becomming a runner was his only alternative.
While he'll lack contacts with the underworld, have a lot of social problems with the low lifestyle origin characters, it can add a lot of flavor to a face.
That favor comes with high placed friends and ennemies.
Skills are classical for a social adept, but contacts are more Jet Set and political than corporate or underworld.
While these are contacts that often come into play, they are rarely earned by money, and so are more difficult to obtain even in the long run, contrary to the inderworld or corporate sectors.