One of the FBI agents is named Special Agent Leonard Heisman. The father of Mark Harmon (who himself played football at UCLA) was a Heisman trophy winner as a tailback for the University of Michigan.
Mark Harmon's last non-NCIS : Enquêtes spéciales (2003) related work until Freaky Friday 2: Encore dans la peau de ma mère (2025) 13 years later.