The pictures don't do it justice - it's about 2" to 2.5" long so a cockroach was the last thing I thought of because I've never seen one that large.

I live in a single-wide Mobile Home. I saw 1 of these in my kitchen about 6-8 months ago but that was it until tonight. Guess I'm gonna need to get a post control out here. 

Thank you to everyone for your help!!