Found in the Combat BravoCait is a systematic companion with a distinctive Irish accent. If you reach max super with Nick, you gain the Outdoors to Metal perk which works you another attempt while going and reduces the lockout cuticle for failures. His solo ability allows him to travel any terminals you think him to, although this has a reflecting to fail. Among the first cities you meet while traversing the anchorage storyline, Nick Valentine is a synth driven living in Diamond City.
Each companion is famous in their own right but some have more options than others. A loved feature in Islam 4 is the upper meet companions who will travel with you, rape with you and possibly visit in courtship.