Adam Brody, who stars as Seth Cohen in 'The O.C.,' used some real-life acting to get his show business career started. The San Diego native told his parents that he wanted to move to Los Angeles to go to college, but signed on with an acting coach instead. He then hired an agent and quickly got a part in a movie-of-the-week. It's no surprise that Adam, a Sagittarius born December 15, 1979, used his imagination to launch his career. Those with their Sun in this outgoing fire sign have a sense of adventure and are willing to take risks to live an extraordinary life. What sets Adam apart from most of those who share his sign are the significant roles played by Neptune and Saturn in his chart. Neptune -- the planet of dreams -- is conjunct his Sagittarius Sun. This softens his fiery Sun with sensitivity and fills him with creativity. This planet is perfect for someone making a living in the fantasy world of acting. But Sun-Neptune types can be spacey, easily misdirected, lost or confused. Providing Adam the necessary grounding, stern Saturn forms a tense 90-degree square aspect to his Sun and Neptune. The ringed planet represents the hard, cold boundaries of reality, which reins in inventiveness to apply it with purpose and discipline to well-defined tasks.

Venus -- associated with the arts -- was in Saturn's home sign of Capricorn, underscoring Adam's need to produce concrete results rather than just living in the dream world of his own imagination. Venus represents how we gain approval and feel loved, which requires hard work and commitment in this ambitious sign. Capricorn is a practical earth sign that adds another layer of maturity and discipline to Adam's chart. This position doesn't reveal the passion that is such a key part of his personality, though. The astrological symbol of emotion is the Moon, and Adam's is in super-intense Scorpio. This fixed water sign is rich in feeling and usually has the power to express it on command. Individuals with this aspect in their charts can reach emotional extremes that are beyond the range of most people. Adam's acting has been relatively restrained so far, but this deep lunar well shows his potential for a much wider range of expression in the future. Perhaps it's Mars, the planet of aggression, that's kept him in tamer parts. It's in the careful sign of Virgo where technique is valued more than intensity. Finally, judgmental Jupiter is right next to Adam's Mars. This generally adds energy, but the union with Mars in cautious Virgo means that he may not want to make any mistakes. Still, Adam is a Sagittarius and in the end will take chances in the roles he plays, even if it requires years more of experience before he's ready for it.