Here is an article from Yahoo about Joey guest starring in the TV show Psych:
There's a New Kid on the Psych block.
Joey McIntyre, one of the members of the boy (now men!) band New Kids on the Block, will guest-star on USA's upcoming sixth season of Psych, EW reports.
The "buff new officer" (McIntyre) will join the Santa Barbara PD but appears to be harboring a secret. Could he be the masked vigilante The Mantis, who's been taking out the city's drug syndicate? Shawn (James Roday) and Gus (Dul Hill) certainly think so.
Malcolm McDowell heads to Psych for season premiere
Other Season 6 guest stars previously announced include Malcolm McDowell and Kristy Swanson.
McIntyre has appeared on Boston Public and competed on the first season of Dancing With the Stars, placing third. He recently reunited with his old band mates and the Backstreet Boys to collaborate on the NKOTBSB act.