Elementary

On the Line (Season 2, Episode 9)

TV-14

TV Episode | 43 min | Crime, Drama, Mystery

Holmes and Watson uncover the identity of a serial killer whose case has gone cold and find themselves butting heads with the NYPD.

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Cast	+ Add Cast
18 cast members

Name	Known for
Jonny Lee Miller Sherlock Holmes Sherlock Holmes See fewer	Mindhunters (2004)
Lucy Liu Dr. Joan Watson Dr. Joan Watson See fewer	Kill Bill: Vol. 1 (2003)
Jon Michael Hill Detective Marcus Bell Detective Marcus Bell See fewer	Widows (2018)
Aidan Quinn Captain Thomas Gregson Captain Thomas Gregson See fewer	Practical Magic (1998)
Troy Garity Lucas Bundsch Lucas Bundsch See fewer	Ballers (2015)
Chris Bauer Detective Gerry Coventry Detective Gerry Coventry See fewer	The Wire (2002)
Eric Sheffer Stevens Tim Spalding Tim Spalding See fewer	As the World Turns (1956)
Dillan Arrick Jenna Lombard Jenna Lombard See fewer	Person of Interest (2011)
Marcus Callender Young Cop Young Cop See fewer	Power (2014)
Charlotte Maier Cynthia Tilden Cynthia Tilden See fewer	Two Weeks Notice (2002)
Ryan McCarthy Sheriff's Officer #1 Sheriff's Officer #1 See fewer	Billions (2016)
Lucas Dixon Sheriff's Officer #2 Sheriff's Officer #2 See fewer	NCIS: Origins (2024)
Howard W. Overshown Detective Detective See fewer	Body of Lies (2008)
Dee Pelletier Polygraph Examiner Polygraph Examiner See fewer	Consensus Reality (2018)
Kate Cullen Roberts Kathy Spalding Kathy Spalding See fewer	The Rebound (2009)
Kacie Sheik Receptionist Receptionist See fewer	Julie & Julia (2009)
Nikki Brower Samantha Wabash (uncredited) Samantha Wabash (uncredited) See fewer	Now You See Me (I) (2013)
Rachel Alana Handler Denise Todd (uncredited) Denise Todd (uncredited) See fewer	Interview with the Vampire (2022)