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Catch an ER Reunion on Law & Order When Mekhi Phifer and Others Join Maura Tierney

ER fans will see some of the show's actors reunite for an upcoming episode of Law & Order, which stars fellow alum Maura Tierney as Lt. Brady.

By Jill Sederstrom
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An upcoming episode of Law & Order may be just what the doctor ordered for fans of the medical drama, ER.

How to Watch

Watch Law & Order Thursdays at 8/7c on NBC and next day on Peacock.

Four former stars who appeared on the Cook County General Hospital-set series will join forces — either in front of, or behind, the camera — in a Season 24 installment of the long-running criminal justice drama.

RELATED: This Snack Makes Mehcad Brooks “Fail” At His Law & Order Set Goals

When will the ER reunion take place on Law & Order?

The mini ER reunion can be seen in Season 24, Episode 10 of Law & Order, titled “Greater Good” and debuting on Thursday, January 23 at 8/7c p.m. on NBC. "When a music mogul is found dead, Shaw and Riley clash with an undercover officer unwilling to cooperate," reads an official description of the episode. "Price and Baxter disagree on whether the victim's reputation could help or hinder the jury's decision in the case."

 RELATED: Why You Recognize Law & Order Guest Stars Haaz Sleiman and Alimi Ballard

Which ER stars are reuniting on Law & Order Season 24? 

Mekhi Phifer — who played Dr. Greg Pratt on ER — will guest star on the episode as Lyman Ross, once again sharing screen time with his former co-star Maura Tierney, who spent 10 seasons as Dr. Abby Lockhart on the popular medical show. Tierney joined Law & Order at the start of Season 24 as Lieutenant Jessica Brady, the 27th Precinct’s no-nonsense new boss

But the ties to County General Hospital won't end there. Eriq La Salle, known to ER fans as Dr. Peter Benton, will direct the episode. And Michael Beach, who had a recurring role as Al Boulet during ER’s early seasons, will reprise his Law & Order role as defense attorney Brian Harris in the episode. Beach's time on ER overlapped with La Salle's initial run on the show, but did not coincide with Tierney and Phifer's time on the medical drama.

Mekhi Phifer smiles in a navy blazer.

It’s clear the former ER actors enjoyed their time together on the Law & Order set.

Mehcad Brooks, who plays Det. Jalen Shaw on Law & Order, posted a photo on Instagram in November featuring himself, Phifer, La Salle, Beach and several others all smiling on the courthouse set.

“Who’s coming to the #LawAndOrder cookout?” he posted alongside the photo.

RELATED: Why You Recognize Law & Order Guest Star Mike Vogel

What else is Mekhi Phifer known for? 

After appearing in 1990s shows like Homicide: Life on the Street and in films like the slasher, I Still Know What You Did Last Summer, Phifer went on to land multiple big projects. In 2002, he starred alongside Eminem, Kim Basinger, and Brittany Murphy in the film 8 Mile.

That same year, he joined the cast of ER as smart but arrogant intern, Dr. Greg Pratt. The character met a devastating fate after he was killed in an explosion in the Season 15 premiere in 2008.

Phifer went on to have recurring or main cast roles on numerous TV series including Lie to Me, Torchwood, House of Lies, Frequency, and Love, Victor, according to his profile on IMDB

Most recently, he co-starred on the crime drama series Truth Be Told alongside Beach, Octavia Spencer, and others.

Eriq La Salle smiles in a tan blazer.

What Eriq La Salle's been up to since ER ended

As for La Salle, his early memorable roles include that of Darryl Jenks in the 1988 rom-com Coming to America before he became a household name during his tenure on ER

La Salle left the hit show in Season 8 and returned for several guest appearances, including for the series finale at the end of Season 15. He also directed a Season 15 episode.

RELATED: Did You Know Jeremy Allen White Played 3 Totally Different Law & Order Characters?

After hanging up his stethoscope, La Salle has gone on to direct episodes of CSI:NY, Madam Secretary, The Night Shift, and Under the Dome, according to his IMDB profile. Since 2016, he’s also directed 21 episodes of Chicago P.D., and two episodes of Chicago Med.

La Salle is not new to Law & Order, having directed several episodes, including Season 24’s premiere.

He's also continued to act, appearing in shows including A Gifted Man, Blackoutand Under the Dome. In 2017, he was seen on the big screen as Will Munson in the superhero flick, Logan.

Catch the "Greater Good" episode of Law & Order, which is Season 24, Episode 10, on Thursday, January 23 at 8/7c p.m. on NBC.