Jon Foster is an American actor and musician. His films include the drama The Door in the Floor (2004), the horror film Stay Alive (2006), the thriller Brotherhood (2010), and the drama Rampart (2011). Foster is a co-founder of the electronic-soul duo Kaneholler, with his wife, Chelsea Tyler who is the daughter of musician and singer Steven Tyler.

Fairfield is a city in, and the county seat of, Jefferson County, Iowa. It has a population of 9,416 people, according to the 2020 census. The median family income is $46,138, with 10% of families below the poverty line.