A Necessary Evil

Summary

Allison is visited once again by the ghost of Agent Cooper, who tries to help her figure out who the real murderer is in a confusing case. Allison begins to question Agent Cooper's motives though and is unsure whether or not she should heed his advice.

Guest stars

• Charlie McDermott as Brandon Whitman
• Josh Holt as Young Man in Diner
• Kurtwood Smith as Edward Cooper
• John Ales as Hal Munzell
• Eddie Driscoll as Adam Dietz
• Maura M. Knowles as Rachel Stetson
• Roy Abramsohn as Douglas Reilly
• Ned Schmidtke as Terry Cavanaugh