Basically, fighters, barbarians, multi class rogues. Characters with high physical stats over mental. The family would expect you to protect the weaker members from physical harms. You're also expected to strictly follow orders as they are given, and not to go off killing indiscriminately, unless it can't be traced back to the Family.
These characters wouldn't work so well RP wise on their own outside of Talanon, unless they are young and being sent "into the world" so to speak to gain experience and skill.