Guest Stars Seamus Dever as NCIS Deputy Director Gabriel LaRoche Demetrius Grosse as Lieutenant Merritt Hastings Sommer Carbuccia as Marine Lance Corporal Brian Zanella Garrett Hines as Marine Lance Corporal Samuel Cross Boyana Balta as Emily Cross Cameron Bender as Martin Gates Co Starring Derek Anthony as NCIS Maintenance Worker Lennox Kincaid Ramsey Thoms as Marine Lance Corporal Evan Cross
