Here is the guest casting call for episode #408, tentatively titled "Faith"

Guest Casting Info:

BATTLESTAR GALACTICA #408 Faith 07/23/07 MAYRS/BRANDSTATTER Sashon
BATTLESTAR GALACTICA #408 Faith 07/23/07 MAYRS/BRANDSTATTER Marine
BATTLESTAR GALACTICA #408 Faith 07/23/07 MAYRS/BRANDSTATTER Emily

So to recap Season 4 so far:

22 episodes #401 to #422
401 - Razor (hour 1 of 2 of the TV/DVD movie) - November 24th 2007
402 - Razor (hour 2 of 2 of the TV/DVD movie) - November 24th 2007
403 - He That Believeth In Me - January 2008
404 - Six of One
405 - The Ties That Bind
406 - Escape Velocity
407 - (TDB)
408 - Faith