Actor Isaac Kappy has died at the age 42.

The US actor, who had roles in Thor, Terminator Salvation and Babysitter, died on Monday after falling from a bridge and being struck by a car.

Prior to his death Kappy shared a troubling post on Instagram in which he apologised to Donald Trump and Jesus.

The US actor, had roles in Thor, Terminator Salvation and Babysitter. Photo / Supplied
The US actor, had roles in Thor, Terminator Salvation and Babysitter. Photo / Supplied

He also deleted all of his other Instagram posts.

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Last August, Kappy found himself the subject of a police investigation after reportedly threatening Jackson and actor Seth Green.

According to TMZ Kappy allegedly choked Jackson at a party and posted videos accusing Green and his wife of being paedophiles.

The incident is said to have left Jackson so shaken she beefed up security and moved out of her home.

Where to get help:

Lifeline: 0800 543 354 (available 24/7)
Suicide Crisis Helpline: 0508 828 865 (0508 TAUTOKO) (available 24/7)
Youthline: 0800 376 633
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Whatsup: 0800 942 8787 (1pm to 11pm)
Depression helpline: 0800 111 757 (available 24/7)
Rainbow Youth: (09) 376 4155
Samaritans 0800 726 666
If it is an emergency and you feel like you or someone else is at risk, call 111.