McCarthy's film credits include "Class," "Heaven Help Us," "Pretty in Pink," "St. Elmo's Fire," "Less Than Zero," "Mannequin" and "Weekend at Bernie's." He recently co-starred in the TV series "Lipstick Jungle," which reportedly hasn't been canceled or renewed for another season.
The Hollywood Reporter said the actor will play "Gossip Girl" character Lily Rhodes's music executive father, Rick, in the new Los Angeles-set spinoff.
"Hairspray" star Brittany Snow is to play Lily and "Confessions of a Shopaholic" sidekick Krysten Ritter her sister Carol, the entertainment industry trade newspaper said.
Kelly Rutherford, 40, plays Lily on the contemporary series, "Gossip Girl."