Louise O'Brien is the younger sister of Tobin, the wife of Sean O'Brien and the mother of Walter O'Brien and the late Megan O'Brien-Dodd.


At some point in her life, she married Sean O'Brien and had two children: a daughter, Megan, and a few years later a son, Walter, in 1982. Her daughter was often sick due to her MS, and at age sixteen her son left home and did not see his parents for fifteen years.

Season TwoEdit

Arrivals and DeparturesEdit

She visits her daughter in the hospital as she dies of MS.

Season ThreeEdit

Sly and the Family StoneEdit





  • She and her husband are Catholic.
  • She and her husband videochat Sylvester every Saturday at 8:00 p.m.

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