Renzulli and Zamacona co-wrote the episodes "Late for School" and "Gimme Shelter". Bradford Winters wrote the teleplay for the episode "Flirtin' with Disaster" from a story by Zamacona and St. Clair. Zamacona wrote the episode "Gypsy Road" solo. In 2004 Zamacona served as an executive producer for the television feature "Silverlake". The film starred Kerr Smith. Zamacona and St. Clair created a second series in fall 2005. The police drama "Wanted" aired on the TNT network. Zamacona once again served as an executive producer and writer for the project. "Wanted" follows a multilateral police taskforce charged with tracking the 100 most wanted criminals. The series other executive producers were again Spelling and Vincent. Zamacona wrote the teleplay for the pilot from a story he co-wrote with St. Clair. Zamacona wrote the teleplay for the episode "The Wild Bunch" from a story he co-wrote with St. Clair. Brian Logan wrote the teleplay for the episode "Click, Click, Boom" from a story by Zamacona and St. Clair. Zamacona was an active participant in the 2007 Writers Guild of America strike. He supported royalties for writers based on online streaming of episodes they had written. In 2009 Zamacona became a consulting producer and writer for the ABC police drama "The Unusuals". The series was created by Noah Hawley and focused on detectives in the New York homicide unit. The series was canceled after ten episodes. Zamacona wrote the episode "The Dentist". In 2010 Zamacona was attached to new series "The Saint" as an executive producer. Following that series, Zamacona served as the Consulting Producer and writer on the TNT show "Proof" in 2015. The next year, Zamacona stayed with TNT as the Co-Executive Producer and Writer on "The Last Ship" that starred Eric Dane. Also, in 2016, Zamacona was the Executive Producer on ABC's "Quantico" starring Priyanka Chopra. In 2019 Zamacona resumed working alongside Tom Fontana for Showtime's "City on a Hill ," starring Kevin Bacon and Aldis Hodge, as a Co-Executive Producer and writer.