There are a number of human talents you could choose that would work: Methodical, Adaptable, Single-Minded and Savvy. Notice, Athletics, Acrobatics, Intimidate, Investigate, Search, Sneak and Resolve would be the skills I'd focus on (maybe he should get a penalty for Tactics if you stat him up as Adam West). Basic Skill Mastery Investigator, Athlete and Robber all work well too. Martial Arts and Master's Art seem to be a natural fit, and Hurled Basics basics with a Boomerang.
You could build him with just about any of the classes, but Sage, Burglar or Martial Artist (or some combination thereof) might be my choice.