The season opener for the 16 year-old company is set to open Oct. 7 for a run through Nov. 14. David Jones directs. A set of three women — all involved with one man — speak of their personal relationship with the man, weaving together a portrait of the subject from three sides. Colin plays the wife, Sheedy the mistress and Specksgoor portrays his daughter.

Colin last appeared on Broadway in A Day in the Death of Joe Egg. Her other credits include the title role on Broadway in Jackie, Off-Broadway in Temporary Help, Speaking in Tongues, Sight Unseen, Psychopathia Sexualis, Aristocrats, House and Garden.

Sheedy, recently seen in The Triple Happiness, has also appeared on stage in The Exonerated, as the first female star of the musical Hedwig and the Angry Inch and the Douglas Carter Beane comedy Advice From A Caterpillar. The actress is known for her film work in "The Breakfast Club," "St. Elmo's Fire," "Short Circuit," "High Art" and "War Games" among others.

Newcomer Specksgoor recently appeared in the Shakespeare Theatre's presentation of Five by Tenn  — five one-acts by Tennessee Williams — at the Kennedy Center in Washington, D.C.

The one-act drama made its world premiere at San Francisco's Magic Theatre Dec. 2003-Jan. 2004. Scribe O'Brien is known for such novels as "The Country Girls," "The Lonely Girl" and "Girls in their Married Bliss" which for the "Country Girl's Trilogy." Her plays include A Pagan Place, Virginia and Beloved.

For tickets to Triptych at Irish Rep, 132 West 22 Street (between 5th and 6th Avenues), call (212) 727-2737. For more information, visit www.irishrepertorytheatre.com.