The trade knows Ari Brickman as a safe pair of hands, a name found in the middle of a cast list more often than on a poster. Roughly 23 credits in 24 years means a rhythm of work most performers never manage. Whatever else is on the list, Secret Service Agent in 'Vantage Point' is the one people name. 'Instructions Not Included' is the credit people reach for second. The parts have grown in size over the years rather than in billing. Drama is where the work has concentrated.