When Dr. Donald “Ducky” Mallard, a liaison from D.C. headquarters and an old acquaintance of Gibbs’, arrives to evaluate whether Pendleton needs an in-house medical examiner, not everyone trusts that’s the real reason behind his visit.
| Name | Type | Role | |
|---|---|---|---|
| Margarita Matthews | Writer | ||
| Gina Lucita Monreal | Writer | ||
| Adam Campbell | Guest Star | Donald 'Ducky' Mallard | |
| Patrick Cady | Director |