- Patricia Arquette (Allison Dubois)
- Jake Weber (Joe Dubois)
- Miguel Sandoval (Manuel Devalos)
- David Cubitt (Lee Scanlon)
- Sofia Vassilieva (Ariel Dubois)
- Feodor Lark (Bridgette Dubois)
Medium — S7E4
Episode: How to Kill a Good Guy
Air Date: 2010-10-15
Runtime: 45 min
Overview
While investigating a missing girl's murder, Allison experiences more friction with Scanlon after finding a possible link to his late brother. Also, Ariel deals with her siblings' reactions to her leaving for college.