Who would you want at your back?

Ith at Absinthe and Cookies is speculating about which five fictional characters she would like to have at her side come the apocalypse. Her choices were:

Methos
LaCroix
Samantha Carter
Amanda
Jack Sparrow

My choices were:

Angel
Spike
The Silver Surfer
Honor Harrington
Dr. Who

What fictional characters woud you want backing you up in the apocalypse?