| Alex O'Loughlin | Steve McGarrett |
| Scott Caan | Danny Williams |
| Daniel Dae Kim | Chin Ho Kelly |
| Grace Park | Kono Kalakaua |
| Masi Oka | Max Bergman |
| Jorge Garcia | Jerry Ortega |
| Chi McBride | Lou Grover |
| Julie Benz | Inspector Abby Dunn |
| Taylor Wily | Kamekona |
| JB Tadena | Edward Torres |
| Al Harrington | Mamo Kahike |
| Cooper Andrews | Vance Pekelo |
| Teilor Grubbs | Grace Williams |
| Zach Sulzbach | Charlie Edwards |
| Javier M. Santiago | Lucas |
| Mark Medeiros | Fuamete |
| Charlene Kalae Campbell | Old Lady |
| Victoria Current | Meredith |
| Jessika Gabriella Lawrence | Mom |
| Patrick Robert Smith | Rand |
| Hahn Cho | Decha |
| Michael Masaki Miyashiro | Pika |
| May Hoshida | Tala |
| Joe McGinn | Deckhand |
| Donnell Jewell Williams | Police Officer |
| Jordan Parsons | Clark's Crew |