Actors in both ER and Lie to Me*
163 actors have appeared in both ER and Lie to Me*, across 379 episodes. The most-credited is Michael Beach, Al Boulet in ER and James in Lie to Me*.
| Actor | In ER | In Lie to Me* | Eps | Eps |
|---|---|---|---|---|
| Michael Beach | Al Boulet | James | 19 | 1 |
| Monique Gabriela Curnen | Nurse Blanca | Detective Sharon Wallowski | 1 | 8 |
| Paula Malcomson | Meg Riley | Lightman's Mom | 8 | 1 |
| Gina Ravera | Dr. Bettina DeJesus | Paula | 13 | 1 |
| Garret Dillahunt | Steve Curtis | Eric Matheson | 5 | 1 |
| Hayley McFarland | Candice | Emily Lightman | 1 | 5 |
| Mekhi Phifer | Dr. Gregory Pratt | Ben Reynolds | 4 | 2 |
| Conor O'Farrell | Richard Abbott | Bernard Dillon | 2 | 3 |
| Michael B. Silver | Dr. Paul Myers | Personick's Attorney | 12 | 1 |
| Christopher Amitrano | Officer Hollis | Jim / Charlie One | 12 | 1 |
| Ashley Johnson | Dana Ellis | Valerie | 2 | 1 |
| Raphael Sbarge | Mr. Kirkendall | Prosser | 2 | 1 |
| Bruce Weitz | Alderman John Bright | Leo O'Sullivan | 3 | 1 |
| Dean Norris | Bomb Specialist Clark | Dawkins | 1 | 1 |
| Jackie Debatin | Judy | Cheyenne | 1 | 1 |
| Mark Rolston | Officer Thomas | Ed Komisky | 1 | 1 |
| Megan Follows | Christy Larkin | Lorraine Burch | 1 | 1 |
| Shoshannah Stern | Rosemary | Sarah | 1 | 3 |
| Maury Sterling | Dr. Nelson | Sully | 5 | 1 |
| Michael Dempsey | Mr. Beckwith | Herman Farr | 1 | 2 |
Cast data from TVmaze, licensed CC BY-SA 4.0.