Magasiva, who has a young daughter from his first marriage, married Sadler in April last year, 18 months after meeting on Instagram.
The family are holding a private funeral service in Wellington this afternoon.
In a statement provided to the Herald earlier in the week, a spokesperson for the late actor's family - including twin brother Tanu and actor brother Robbie - thanked the public.
"Pua's family members are in the acute stage of grief and are not in a place to comment at this time other than to acknowledge the public outpouring of love for Pua and to thank all those who've expressed their condolences and offered their support," the statement said
Magasiva's death has shocked not only Kiwis, but the acting community all around the world.
He rose to fame on Shortland Street where he played nurse Vinnie Kruse-Miller from 2003-2006, and then returned from 2011-2018.
He also had roles in the Power Rangers television series, Sione's Wedding and Outrageous Fortune.
He co-hosted the breakfast show on Flava, a radio station owned by NZME, but left the show last year. NZME is the publisher of the Herald.
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