Jonathan Tiersten (born August 11, 1965) is an American actor and singer, who is mostly known for his role as Ricky Thomas in the 1983 cult classic Sleepaway Camp.

In between acting Jonathan took to music, fronting a number of bands, mostly based out of the Fort Collins, Colorado area.

Tiersten is currently the lead singer of his own band, Ten Tiers and composed the score to a short starring David Krumholtz (from the TV series Numb3rs).

Tiersten also starred in the 2012 film The Perfect House in which he played a serial killer named John Doesy and the upcoming (as of May 2014) thriller film Redemption which co-stars George Loros (Buffalo Ray Curto from The Sopranos) and Meredith Ostrom (Love Actually).

In 2012 and 2013 Tiersten garnered three best actor awards and was nominated for a fourth for his portrayal of John Doesy in The Perfect House.