If you're going for a caster/ranged fighter then I would recommend the Pyromancer. He starts with the Fireball spell which is really quite powerful (can kill the armoured skeletons in Undead Berg in one hit), and it's really useful against the boss/mini boss characters. I would also advise saving 2500 souls and going to see Rickert of Vinheim early on, and buying Soul Arrow and the Sorcerer's Catalyst, which gives you more ranged options.
You'll need to find a good shield early on though, as the one you start with doesn't block 100% of the physical damage, so even when blocking you'll still be taking damage. That was a priority for me when I started.