By Lynette Rice
October 18, 2011 at 03:00 PM EDT
Tommaso Boddi/

A Pretty Little Liars friend from Catherine’s past will step inside the yellow tape of CSI next month.

EW has learned that Annabeth Gish, who played therapist Anne Sullivan on ABC Family’s Pretty Little Liars this summer, will join the CBS series for a three-episode arc.

She will play Laura, a childhood friend of Catherine’s (Marg Helgenberger) whose husband is investigated by the CSI team. Laura is married to a billionaire head of a military contractor who may (or may not) have played a role in a recent arms theft. (The husband has yet to be cast). Gish’s arc will begin with episode 9 of CSI.

From 2006-08, Gish earned critical praise for her work in Showtime’s Brotherhood as Eileen Caffee, the wife of Rhode Island state representative Tommy Caffee. Her previous credits include The West Wing and The X-Files.

Read more:

Friday Night Lights alum to guest on CSI

Pretty Little Liars: Our Summer Guilty Pleasure

Gish, Brosnan to star in ‘Bag of Bones’

  • TV Show
  • 09/21/11
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