Shawn Piller is a principal and executive producer at Piller/Segan/Shepherd, an independent content production company.
In 1999, Piller partnered with his father, Michael Piller, to form Piller², an independent production company headquartered in Hollywood, California. After Michael's death in 2005, the company merged with producer Lloyd Segan's indie company The Segan Company to become The Piller-Segan Company. The latest addition to the company and now third partner was Shepherd and the company became known as Piller/Segan/Shepherd.
In 2000, Piller co-wrote and co-produced Day One, a science fiction pilot for The WB Network. He has also written episodes of Star Trek: The Next Generation and Star Trek: Voyager. He has been involved with the development of numerous pilot scripts under his deals with The WB, Granada Entertainment and Paramount Pictures.
In 2001, Segan approached the Pillers to develop a television series from Stephen King's novel The Dead Zone. The series starred Anthony Michael Hall and ran from 2002–2008 on the USA Network. In 2005, Wildfire debuted on the ABC Family channel, starring Deep Space Nine 's Nana Visitor. The fourth and final season of Wildfire premiered in early 2008. Greek debuted in the summer of 2007 and became the longest-running series on ABC Family.
Piller is currently Executive Producer on Syfy's Haven and has directed 9 episodes of the series. 
Piller's father, the late writer-producer Michael Piller, was the executive producer of Star Trek: The Next Generation, the co-creator and executive producer of Star Trek: Deep Space Nine and Star Trek: Voyager, and the co-creator and executive producer of UPN's Legend, as well as The Dead Zone and Wildfire.
- Adalian (1999-12-09). "Trekkie Piller, son ink WB prod’n deal". Variety. Retrieved 2014-04-18.
- Schneider, Michael (2010-02-21). "Piller/Segan/Shepherd on hot streak". Variety. Retrieved 2014-04-18.
- Martin, Denise (2006-07-26). "Lionsgate keeps pair in lair". Variety. Retrieved 2014-04-18.
- Kit, Boyris (2011-06-01). "Seth Green, Michelle Trachtenberg Join Indie 'Sexy Evil Genius'". The Hollywood Reporter. Retrieved 2011-08-29.
- "Haven - IMDb". IMDb. Retrieved 12/7/2014. Check date values in:
- "Michael Piller". Variety. Associated Press. 2005-11-02. Retrieved 2014-04-18.
- "Notable Alumni". University of Southern California. Retrieved 2014-04-18.
- "TV chef Curtis Stone and actress Lindsay Price expecting baby". Herald Sun. 2011-06-24. Retrieved 2014-04-18.
She was previously married to Hollywood producer Shawn Piller from 2004 to 2007.