Question: Which American television actor appeared in the CW noir drama "Veronica Mars" and "Graduation" directed by Mike Mayer?
Sentence (from "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".
Relevant evidence: Yes