Guest Stars William B. Davis as Cigarette-Smoking Man Annabeth Gish as Special Agent Monica Reyes James Pickens, Jr. as Deputy Director Alvin Kersh Joel McHale as Tad O'Malley Barbara Hershey as Erika Price Madeleine Arthur as Sarah Arthur Alan C. Peterson as Mr. Y Ben Cotton as Mr. Paulsen Sarah Jeffery as Brianna Stapleton Zak Santiago as Mr. Green Miles Robbins as Jackson Van de Kamp / William Co Starring Keith Arbuthnot as Ghouli Mark Acheson as Trucker West Duchovny as Maddy Thomas Nicholson as BDU Soldier Henry Mah as Night Manager JP Finn as Watching Man Gerry Rousseau as Homeless Man Austin Dunn as William (15 Years) Chase Nicholson as William (11 Years) Rogan Christopher as BDU Team Leader Jodi Pongratz as Female Attendant Tanya Niobe Martinez as Homeless Woman Bentley Hixson as William (5 Years) Cole Lindsay as Jared Marriott
