Meet Casey Miller (Emma Roberts) and Kenny Miller (Will Poulter) in the first two character posters for We're the Millers. Of course, they are not really Casey and Kenny Miller, they are just part of a drug dealer's (Jason Sudeikis) fictional family that he uses to smuggle a big shipment of marijuana in from Mexico. Take a look at this fake brother and sister, who are actually a virgin and a runaway, in this comedy from director Rawson Marshall Thurber, debuting in theaters August 9.