Separation Anxiety is the eleventh episode of the fifteenth season of the NBC medical drama series ER . It premiered on January 8, 2009.

"Separation Anxiety"
Season 15, Episode 11
Separation Anxiety
Air date January 8, 2009
US viewers 7.32 M
Written by Virgil Williams
Directed by Terence Nightingall
Episode Guide
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When a drug deal goes bad, two brothers sustain serious injuries and are brought to the ER. Tensions continue between Gates and Sam , coming to a head when Tony is the last to know Alex is about to be released from the hospital. Neela has to tell a young girl with sickle cell anemia that she must have an operation, and the case leads her to consider specializing in pediatric surgery. A feisty patient takes Morris into her confidence. Banfield ponders her choices about expanding her family.

Cast and Characters


Parminder Nagra as Dr. Neela Rasgotra

John Stamos as Dr. Tony Gates

Linda Cardellini as Nurse Sam Taggart

Scott Grimes as Dr. Archie Morris

David Lyons as Dr. Simon Brenner

Angela Bassett as Dr. Cate Banfield


Justina Machado as Detective Claudia Diaz

Gil McKinney as Dr. Paul Grady

Troy Evans as Frank Martin

Courtney B. Vance as Russell Banfield

Amy Aquino as Dr. Janet Coburn

Angel Laketa Moore as Nurse Dawn Archer


Imani Hakim as Anastasia Johnson

Robbie Jones as Jermaine Bennett


  • Although listed in the opening credits, David Lyons does not appear in this episode.
  • Both Jesse Borrego, who portrays desk clerk Javier, and Justina Machado, who portrays Serena/Claudia Diaz, made previous guest star appearances as different characters in the Season 4 premiere, "Ambush ."


  1. Seidman, Robert (January 9, 2009). "Updated Thursday Ratings: BCS Championship dominates ". TV by the Numbers. (May 24, 2015).