Season Regulars 4

1. 

   Alex O'Loughlin

   Steve McGarrett

2. 

   Scott Caan

   Danny 'Danno' Williams

3. 

   Grace Park

   Kono Kalakaua

4. 

   Daniel Dae Kim

   Chin Ho Kelly

Guest Stars 14

1. 

   Teilor Grubbs

   Grace Williams

2. 

   Troy Garity

   Agent Edward Kipton

3. 

   Debrah Farentino

   Elizabeth Roan

4. 

   Boni Yanagisawa

   Katie Kamalei

5. 

   Claire van der Boom

   Rachel Edwards

6. Oliver Krstic

   Brian Meachum

7. Matthew Hirokane

   Kyle Chen

8. Eric Nemoto

   DPA James Chen

9. 

   Dane Cook

   Matt Williams

10. Dezmond Gilla

    Pedro Fuentes

11. Brooke Alexander

    Diana Meachum

12. 

    Clyde Kusatsu

    Judge Kamalei

13. Scott Nordquist

    Agent Adam Markowitz

14. 

    Theo Coumbis

    The Voice (voice)

Crew 4