AceShowbiz - "NCIS: Naval Criminal Investigative Service" has added two cast members for season 19. It has been reported that Gary Cole and Katrina Law will join the upcoming season of the CBS venerable drama series amid speculation that Mark Harmon will limit episodes.

Gary will be playing a new character, FBI Special Agent Alden Park. Meanwhile, Katrina is set to reprise her role as Special Agent Jessica Knight. She was introduced in the last two episodes of season 18.

Jessica is described as a formidable REACT (Regional Enforcement Action Capabilities Training Team) agent who specializes in hostage negotiations and handles daily high-risk operations with skill and precision. She is sharp, athletic, tough and fiercely tenacious in addition to having a wry sense of humor. Details about Gary's character, however, have yet to be released.

"We haven't shot a single frame quite yet, but with the addition of Gary Cole and Katrina Law to the cast, this is already shaping up to be one of the best seasons yet," said executive producer and showrunner Steven D. Binder in a statement. "Going into season 19, we are excited to have new characters and stories to tell that adds to and reenergizes the world we've come to love over the 400-plus episodes."

The new additions arrive amid rumors that Mark is looking to scale back his time on the show. However, insiders assured that Gary would not replace Mark, who plays Leroy Jethro Gibbs. CBS refused to comment on Mark's status, but the network did confirm that he would return to the show for its 19th season.

Season 19 will also star Sean Murray, Wilmer Valderrama, Brian Dietzen, Diona Reasonover, Rocky Carroll and David McCallum. "NCIS" is set to air on Mondays at 9 P.M. ET/PT on CBS this fall.