Which American television actor appeared in the CW noir drama "Veronica Mars" and "Graduation" directed by Mike Mayer?
Brian Ralston:  He has also composed music for the television series "Angel" (Season 4) and scores to the theatrical motion pictures "9/Tenths", directed by Bob Degus ("Pleasantville") starring Gabrielle Anwar, Henry Ian Cusick and Dave Ortiz, the Magnolia Pictures teen heist movie Graduation directed by Mike Mayer and starring Adam Arkin, Shannon Lucio, Chris Marquette, Riley Smith and Chris Lowell, and the dramatic feature Don't Fade Away directed by Luke Kasdan, starring Beau Bridges, Mischa Barton and Ryan Kwanten. Chris Lowell:  He played the role of Stosh "Piz" Piznarski in the CW noir drama "Veronica Mars" and the character William "Dell" Parker in the ABC "Grey's Anatomy" spin-off "Private Practice".
i don't know