Exclusive First Look: Jenna Elfman Goes Crazy on Shameless

Jenna Elfman is about to get Shameless.

The Dharma & Greg star will appear in Sunday's season finale and TVGuide.com has the exclusive first look. Elfman will portray a fellow patient at the psychiatric facility where Monica (Chloe Webb), who attempted suicide in the penultimate episode, is being held.

Jenna Elfman to guest-star on Shameless

Will she help Monica to see the light? We'll find out Sunday at 9/8c on Showtime! Will you be tuning in?