Usually, I pronounce it as KATH-rin, though I say it slow enough, then it becomes KATH-e-rin.
My PNL:
http://www.behindthename.com/pnl/149249'Maybe It Is Daijiro (aka Maks)' blog:
https://maybeitisdaijirou.wordpress.com/'Beyond Sakura and Hiroshi' blog:
https://beyondsakuraandhiroshi.wordpress.com/My Twitter: @maybeitsdaijiro