Fair rating?Linchpin
In the explosive conclusion of a two-part story arc that began last week with "Pandora," Castle & Beckett race to find the "Linchpin" in order to stop the first domino in a chain of events which will plunge the United States into war.
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#3In Season 4of 23 rated episodes
#26All-timeof 173 rated episodes
+0.2vs season avgSeason 4 averages 8.0
2012First airedFebruary 20, 2012
Guest stars
Jennifer Bealsas Sophia Turner
Josh Stambergas Martin Danberg
David Chisumas Thomas Gage
Russell Edgeas JonesBurnadean Jonesas Tech #2
David Limas Agent Trahn
Steve Krameras Super
Lak Ranaas Tech #3
Jim Turneras Janacek Spivey
Cal Gibsonas Chess Player
Jade Carteras Agent Jack CorriganCrew
Rob BowmanDirector
Andrew W. MarloweWriter