Serena Southerlyn

Serena Southerlyn
Law & Order character
First appearance	"Who Let The Dogs Out?"
Last appearance	"Ain't No Love"
Portrayed by	Elisabeth Röhm
Time on show	2001–2005
Seasons	12, 13, 14, 15
Credited appearances	85 episodes (total)
Preceded by	Abbie Carmichael
Succeeded by	Alexandra Borgia

Serena Southerlyn is a fictional character (played by Elisabeth Röhm) on the long-running NBC drama series Law & Order. She appeared in 85 episodes.

Southerlyn joins the District Attorney's office in the 2001 episode "Who Let the Dogs Out?" as an ADA, replacing Abbie Carmichael (Angie Harmon). She worked under District Attorneys Nora Lewin (Dianne Wiest) and Arthur Branch (Fred Thompson) and Executive Assistant District Attorney Jack McCoy (Sam Waterston). She was the second longest serving junior ADA in the history of the series having served three complete seasons and half of a fourth. Connie Rubirosa (Alana de la Garza) served four complete seasons. On Law & Order: Special Victims Unit, ADA Casey Novak (Diane Neal) served for five complete seasons.

Southerlyn often disagreed with McCoy over their trial strategies in cases where she sees the defendant's crime as a by-product of social circumstances, such as homelessness or racism. She had an especially troubled relationship with Branch, a conservative who replaced Lewin as District Attorney in 2002. There is some nuance in her political outlook, however; she takes a hardline stance against illegal immigration. and sees the Miranda Warning as "trite" and a "hollow formality".

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