One Book, Two Covers is the 21st episode of NCIS Season 14 and also the 327th episode of the entire NCIS series.
Torres must rely on old case notes and contacts after a Marine's murder is linked to a former dirt bike gang he joined for a year-long undercover operation.
|Leroy Jethro Gibbs||Mark Harmon||Special Agent in charge of the NCIS Major Case Response Team.|
|Abigail Sciuto||Pauley Perrette||Chief Forensic Specialist for the NCIS Major Case Response Team.|
|Timothy McGee||Sean Murray||Senior Special Agent and second-in command of the NCIS Major Case Response Team.|
|Nicholas Torres||Wilmer Valderrama||Special Agent for the NCIS Major Case Response Team.|
|Alexandra Quinn||Jennifer Esposito||Special Agent for the NCIS Major Case Response Team.|
|Eleanor Bishop||Emily Wickersham||Probationary Agent for the NCIS Major Case Response Team.|
|James Palmer||Brian Dietzen||Assistant Medical Examiner for the NCIS Major Case Response Team.|
|Leon Vance||Rocky Carroll||Director of NCIS.|
|Donald Mallard||David McCallum||Chief Medical Examiner for the NCIS Major Case Response Team.|
|Clayton Reeves||Duane Henry||Officer with MI6.|
|Royce Layton||Jonny Ray Gill|
|Female Marine Officer||Cherise Boothe||Marine officer.|
|Mitch Monroe||Tony Sancho|
|Reagan Reilly||Kate Cobb|
|Johnny Diggs||Henri Esteve|
|Kyle Campbell||Brian Andries||Corporal in the United States Marine Corps.|
|Alonzo Marcel||James C. Bristow|
|Rosewood Boy||Josef Urban|
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