William Mapother

4 of 24 episodes

S01E09

Solitary

November 17, 2004

S01E10

Raised by Another

December 1, 2004

S01E11

All the Best Cowboys Have Daddy Issues

December 8, 2004

S01E15

Homecoming

February 9, 2005

1 of 24 episodes

S02E15

Maternity Leave

March 1, 2006

4 of 23 episodes

S03E01

A Tale of Two Cities

October 4, 2006

S03E07

Not in Portland

February 7, 2007

S03E14

Exposé

March 28, 2007

S03E16

One of Us

April 11, 2007

1 of 17 episodes

S05E01

Because You Left

January 21, 2009

1 of 17 episodes

S06E03

What Kate Does

February 9, 2010