Jennifer Aniston was supposed to cast in NCIS

Jennifer Aniston and Harrison Ford were supposed to cast in NCIS.

Executive producer Charles Floyd Johnson told The Hollywood Reporter for a 20th-anniversary oral history for the show, “I know Harrison Ford was a name that everybody thought about for [Leroy Jethro] Gibbs [ultimately played by Mark Harmon] because he was so perfect".

"But I don’t think it ever got further than, it was a name thrown out.”

Jennifer Aniston was up for the role of Agent Caitlin "Kate" Todd but her schedule was tight for Friends.

Johnson tells, “I think Jennifer Aniston was available at the time, and her name was floated".