Currently available on 4 streaming services.

Magnum P.I. - watch online: streaming, buy or rent

Currently you are able to watch "Magnum P.I." streaming on Amazon Prime Video Free with Ads for free with ads or buy it as download on Amazon Video, Apple TV, Fandango At Home.

Cast

Jay Hernandez
Jay Hernandez
Thomas Magnum
Perdita Weeks
Perdita Weeks
Juliet Higgins
Zachary Knighton
Zachary Knighton
Orville “Rick” Wright
Stephen Hill
Stephen Hill
Theodore “T.C.” Calvin
Tim Kang
Tim Kang
Det. Gordon Katsumoto
Amy Hill
Amy Hill
Teuila "Kumu" Tuileta