DR. REID SQUARES OFF WITH AN OLD NEMESIS AND DEREK MORGAN COMES TO THE TEAM WITH A LEAD THAT MIGHT HELP CATCH MR. SCRATCH, ON THE 12th SEASON FINALE OF "CRIMINAL MINDS," WEDNESDAY, MAY 10

Shemar Moore Returns as Derek Morgan

Jane Lynch Returns as Diana Reid, the Mother of Dr. Reid

"Red Light" - Caught in an impossible scenario, Reid must square off with an old nemesis, and Derek Morgan (guest star Shemar Moore)
comes to the team with a lead that might help catch Mr. Scratch, the elusive fugitive that has been tormenting the team all season, on the 12th season finale of CRIMINAL MINDS, Wednesday, May 10 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Jane Lynch returns as Diana Reid, the mother of Dr. Reid.

REGULAR CAST: Joe Mantegna (David Rossi)
Paget Brewster (Emily Prentiss)
Matthew Gray Gubler (Dr. Spencer Reid)
A.J. Cook (Jennifer "JJ" Jareau)
Aisha Tyler (Dr. Tara Lewis)
Kirsten Vangsness (Penelope Garcia)
Adam Rodriguez (Luke Alvez)
Damon Gupton (Stephen Walker)

GUEST CAST:

Shemar Moore (Derek Morgan)
Cynthia Rose Hall (Guard)
Kevin Will (John Fords)
Beth Riesgraf (Maeve Donovan)
Ellington Ratliff (Ronnie Hawks)
Calvin Harrison (Agent Cal)
Richard T. Jones (Guard Lionel Wilkins)
Gia Mantegna (Lindsey Vaughn)
Jane Lynch (Diana Reid)

WRITTEN BY: Breen Frazier

DIRECTED BY: Glenn Kershaw