I would say, clean character, ties, & associations; and his appearance... YES
Job experience would have been nondescript, non-entity, Zero: NO
I don't think that the job of double-agent would have been issued to someone because they were a cute and nice guy.... They would be required to hold a consistent track-record for fighting crimes and atrocities; because an impeccably good judge of character, would have been essential... And, of course, ties and associations would have been required to pass a strict 10 year background check for felon and admitted terrorist activity...
And of course, a Foreign Agent would have been required to hold knowledge in international intelligence; and hands-on Military experience would be a must. It's not like "being present" or studio aids, would have been enough.
Like I said, consistent security positions would have been essential.