At the end of the first season of Lie to Me, Mekhi Phifer joins the cast on a regular basis. He's playing the role of Ben Reynolds.

Mekhi Phifer is seen here during his first episode on Lie to Me. The former ER star's character assists Lightman on a case.

In May of 2009, Mekhi Phifer guest stars on Lie to Me. He sticks around the show for a few episodes.