claim: Doug Petrie played three roles in Dr. Horrible's Sing-Along Blog.
evidence: The 1964 Wilkes 400 was a NASCAR Grand National Series -LRB- now Monster Energy NASCAR Cup Series -RRB- event that was held on October 11 , 1964 , at North Wilkesboro Speedway in North Wilkesboro , North Carolina .. North Wilkesboro Speedway. North Wilkesboro Speedway. NASCAR. NASCAR. Grand National Series. Monster Energy NASCAR Cup Series