Episode Info

Abby delves into the mind of a brilliant scientist and becomes fixated on solving her murder. Meanwhile, DiNozzo's latest fling leads to an interesting Halloween.


Mark Harmon
as Leroy Jethro Gibbs
Michael Weatherly
as Anthony Dinozzo
David McCallum
as Donald 'Ducky' Mallard
Pauley Perrette
as Abby Sciuto
Sean Murray
as Timothy McGee
Cote de Pablo
as Ziva David
Emily Wickersham
as Eleanor Bishop
Rocky Carroll
as Leon Vance
Brian Dietzen
as Jimmy Palmer
Wilmer Valderrama
as Nicholas Torres
Duane Henry
as Clayton Reeves
Meredith Monroe
as April Ferris
Maria Bello
as Jacqueline Sloane
Brennan Elliott
as Martin Stillwell
Robin Pearson Rose
as Lorraine Thorson
Raphael Sbarge
as Rupert Kritzer
Steven Anderson
as Daniel Redner
Erica Piccininni
as Lt. Clea Thorson
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