Plenty of assassin rogue (11), a bit of bard (3, lore or valour is fine), barbarian (7, choose your flavour).
Level in whatever order.
Meaty, hits hard, smart of mind and quick with fists, not a mouth yet at the forefront, can tell people how to do stuff right with his grizzled experience, a bit of a grab-bag of stuff he can do properly as well (butter them up (charm), knock them around (damage spells), tell them that they're crap (vicious mockery), gets along with dogs and big pussycats fine (animal spells), sends mooks into sleepyville (sleep)), whatever you want.
Not super heavy, but quicker than he looks, with a few smooth moves to put one over someone at a pinch. Reliable, solid muscle, that knows enough of the game to give some insightful advice to anyone.