Chris Lowell
Christopher Chris Lowell is an American television actor. He played the role of Stosh Piz Piznarski in the CW noir drama Veronica Mars and the character William Dell Parker in the ABC Greys Anatomy spinoff Private Practice.
Lowell was born in Atlanta, Georgia. He attended the Atlanta International School, where he became interested in theatre and filmmaking. He attended the University of Southern California, where he was discovered in his first year while playing beach volleyball. In his spare time, he enjoys amateur filmmaking, theatre, and traveling.
Source: Wikipedia