Well, as you have characterised all three men according to their occupations I think that is going to be the starting point, after a comment on the nature and temperament of the chart native.
The strongest planet in the chart is Saturn in Aquarius, followed by the Moon in Cancer (though the later is combust - too near the Sun). Mercury also has some dignity being Cazimi - at the heart of the Sun - a mind and will in tune and also the staying power and sheer power of Saturn in all it's glory. This person is likely to succeed and succeed well because of effort. However, being Saturn, it is likely that success will come relatively late in life - certainly into his thirties or even later.
The temperament is a balance of the Phlegmatic and the Choleric.There's the ability to achieve and accomplish (though often they would prefer to be lazy). They are creative and can generate solutions to problems, with the well placed Mercury this is an 'ideas' creative person. They won't pick fights or be aggressive but if challenged they've more than enough to see off anyone, especially if they get really angry.
Their Sun is in the twelfth, they're going to be in the background, what ever they do (though they are in charge). The squares of Jupiter to Moon Mercury and Sun suggest a constant struggle to keep on track and not be too creative, or too lazy or even too over-optimistic - this is one of life's challenges. Indeed the Sun is in poor shape shape, the twelfth is an accidental debility (very bad place to be) and it's peregrine (no dignity in its placement and dependent on others)'
Their career/social role is denoted by the tenth. In this case Taurus is on the MC (tenth cusp) ruled by Venus. So we are after a Venus/Taurus type career. According to Lilly possible careers inclued Musicians, gamesters, linen-drapers, silk men, embroiderers, women-tailors, jewellers and perfumers and finally (in this slightly abbreviated list) singers - so I think that narrows the choices down to two.
The tenth ruler is Venus which is in the eleventh house of friends and politics. The career could well be boosted by friendships with influential people either directly or by them providing support that is non-financial but still gets this person noticed.
Mercury rules both the House of friends and the House of material resources (the second) - Given that Mercury is quite strong we have a person who will make money from their ideas, thier ability to communicate and their creative abilities.
This person's Ascendant is aspected by a number of Stars - Arcturus suggests the ability to take different approaches, Antares which suggests an almost aobsessive desire for Success, and Rukbat which emphasises the Saturn charactersitics of steadiness and strength. These three also aspect Venus, the ruler of the tenth, transferring these traits into the career.
Saturn rules and is situated in the seventh House of partnerships, so it's possible that business partners might be important or Wives/partners play a role.
One last comment - The Ascendant is also aspected by Capulus which suggests strong male sexual desire. The strongest planet, Saturn is aspected by Algol, female passion and intensity - either these aspects cancel out or possibly we have someone who can swing between the two.
OK, I know who it is!