- 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 — S5E8
Episode: Truth Be Told
Air Date: 2009-03-30
Runtime: 44 min
Overview
Allison has a dream about a game show that can detect lies, and upon waking up she hears a buzzer in her head whenever someone tells her a lie. Allison's new talent is put to good use during a murder investigation.