Jacob Tomuri has 4 siblings. He failed drama in high school, though he loved it and could not think of doing anything but acting. After completing his secondary school education, Jacob started working and learning at The New Zealand College of Performing Arts in Porirua. When he graduated, he got a job in The Lord Of The Rings as a stuntman. First only a contract for 4 weeks, it became a year-and-a-half contract. Jacob was the youngest member of the 20-strong stunt team. He learned a lot about stuntworking, while working on The Lord Of The Rings Trilogy. While working as a stuntman, he also had a role as Lieutenant Luke in the third series of The Tribe and a small role in the movie Snakeskin. In 2004, he got the award as CLEO Celebrity Bachelor of the Year 2004.
Jacob is engaged and a father of 2 Sons.