Chicago P.D./The Number of Rats (2)

The Number of Rats (2)
Season 2, Episode 20
Airdate	April 29, 2015
Teleplay by	Cole Maliska & Matt Olmstead
Story by	Matt Olmstead & Warren Leight
Directed by	Nick Gomez
Stream
← 2x19 The Three Gs	2x21 → There's My Girl
Chicago P.D. — Season Two

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The Number of Rats (2) is the twentieth episode of the second season of Chicago P.D., and the thirty-fifth episode overall.

Starring: Jason Beghe (Sgt. Hank Voight), Jon Seda (Senior Detective Antonio Dawson), Sophia Bush (Detective Erin Lindsay), Jesse Lee Soffer (Detective Jay Halstead), Patrick John Flueger (Officer Adam Ruzek), Marina Squerciati (Officer Kim Burgess), LaRoyce Hawkins (Officer Kevin Atwater), Amy Morton (Sgt. Trudy Platt), Brian Geraghty (Officer Sean Roman)

and Elias Koteas (Detective Alvin Olinsky)

Special Guest Stars: Mariska Hargitay (Sergeant Olivia Benson), Danny Pino (Detective Nick Amaro), Ice T (Detective Odafin "Fin" Tutuola), Peter Scanavino (Detective Dominick Carisi, Jr.)

Guest Stars: Dallas Roberts (Greg Yates), Stella Maeve (Nadia Decotis), Nick Gehlfuss (Dr. Will Halstead), Samuel Hunt (Craig "Mouse" Gerwitz)

with Jesse Spencer (Lt. Matthew Casey)

and Eamonn Walker (Battalion Chief Wallace Boden)

with Rachel Melius (Charlotte Reegan), Laura Lapidus (Janine), Jeff Parker (Dr. Smith), Tiffany Bedwell (Victoria Lewyn)