I've not come across these before, seems slightly similar to Sharpe, so it jumps to the top of my must read list - why does this always happen!!
I remember the Casca series...The book i liked the most was when he was Casey Romain back in viet nam (a second time...first he was there with the french), looking for that special Vietnamese colonel to make sure he died horribly. Yes the eternal mercenary..cursed to walk the earth till Jesus comes back. it was a fairly good series.
It fell apart when barry sadler died. otherwise, a good series :camo: