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Alan Jackson — no, not the country singer — is one of the most recognizable figures in Southern California’s legal world. He’s known for handling high-profile criminal cases, with a client list that now includes Nick Reiner, reports People. Jackson is representing the son of Rob Reiner and Michele Singer Reiner. Nick is accused of murder in connection with the December 14, 2025, deaths of his parents.

As the case unfolds in court, we’ll hear more about Jackson. In the meantime, you’re almost certainly familiar with at least one of his past clients.

Attorney Alan Jackson has a career success rate of 96%, according to his firm

A veteran of the U.S. Air Force, Jackson began his legal career on the opposite side of the courtroom, spending many years as a prosecutor with the Los Angeles County District Attorney’s Office. There, he handled serious felony cases, including violent crimes and major investigations. After leaving the DA’s office, Jackson transitioned into private practice, where he quickly became a sought-after name for defendants.

Jackson tends to keep his personal life private. Colleagues describe him as disciplined and deeply prepared. Today, Jackson is a partner at prominent Los Angeles–based criminal defense firm Werksman Jackson & Quinn LLP. He has tried more than 85 cases to jury verdict with a career success rate of 96%.

Jackson’s client list has included celebrities, executives, and high-profile individuals. However, he is not an entertainment lawyer; his focus is criminal law and high-stakes litigation. Here are Alan Jackson’s most famous clients:

Kevin Spacey

Kevin Spacey was charged with felony indecent assault and battery for allegedly groping an 18-year-old busboy at a Nantucket, Massachusetts, bar in 2016, reports NPR. The man claimed Spacey got him drunk and then touched him without consent. Spacey pleaded not guilty, while his defense, including Jackson, raised questions about missing cellphone evidence and inconsistencies. In 2019, prosecutors dropped the case after the accuser refused to testify at a key hearing.

Harvey Weinstein

In 2020, Harvey Weinstein was convicted in New York on sex crime charges. Later, the disgraced film mogul faced a separate criminal trial in Los Angeles involving multiple counts of sexual assault related to incidents from the early 2000s, reports NBC News. Jackson was part of Weinstein’s defense team in the LA case. He helped lead courtroom strategy and challenged the credibility of accusers and the prosecution’s narrative. In 2022, Weinstein was found guilty on some counts and not guilty on others.

Karen Read

Although not famous at the time of her boyfriend’s death, Karen Read quickly became a household name as her trial unfolded and HBO Max released its docuseries, A Body in the Snow: The Trial of Karen Read. The former finance executive was accused of second-degree murder and related charges in the 2022 death of Boston police officer John O’Keefe. Prosecutors said Read struck him with her SUV while intoxicated and left him to die.

Jackson led her legal team through a mistrial in 2024 and a retrial in 2025. He argued that she was framed due to alleged investigative misconduct, ultimately securing acquittals for the murder and manslaughter charges. Read was found guilty only of operating under the influence and given probation. Jackson continues to represent Read as she faces a civil wrongful-death lawsuit filed by O’Keefe’s family.

Naasón Joaquín García

Naasón Joaquín García, the leader of the La Luz del Mundo megachurch, has been accused in both state and federal cases of racketeering, sex trafficking, child exploitation, and related crimes for allegedly using his religious authority to sexually abuse and exploit women and children for decades. Prosecutors describe a multigenerational pattern of abuse tied to the church’s leadership.

García pleaded not guilty to the latest federal indictment unsealed in New York. He’s already serving a lengthy sentence in California on related convictions. Jackson is part of García’s defense team. He calls the charges exaggerated and the result of government overreach.

Justin Gimelstob

Justin Gimelstob, a former professional tennis player and broadcaster, was charged in Los Angeles with felony battery after allegedly attacking a man during a Halloween night altercation in 2017. He initially pleaded not guilty. However, Gimelstob later accepted a no-contest plea that reduced the felony to a misdemeanor, reports The New York Times. This resulted in probation, community service, and anger management requirements for the retired tennis player.

Jackson represented Gimelstob during the legal proceedings. The case attracted scrutiny within the tennis world due to Gimelstob’s roles as a Tennis Channel commentator and ATP board member.

Sir Philip Green

Sir Philip Green, chairman of the Arcadia Group (with brands like Topshop and Miss Selfridge), was charged in Arizona with multiple misdemeanor assault counts. The British retail magnate was accused of inappropriately touching a Pilates instructor at a luxury resort. He strongly denied the allegations, according to the Independent. Prosecutors ultimately dismissed the U.S. charges, but the case drew international attention. Jackson was retained as Green’s defense attorney in the U.S. proceedings and represented Green against the assault accusations.

Alan Jackson also prosecuted the trial of Phil Spector

Phil Spector was charged with the murder of actress Lana Clarkson in 2003 after she was found dead in his Los Angeles mansion. The legendary music producer’s first trial in 2007 ended in a mistrial due to a hung jury. In 2009, the retrial resulted in Spector being convicted of second-degree murder and sentenced to 19 years to life in prison. Jackson was the lead prosecutor for the Los Angeles District Attorney’s Office in both trials before transitioning to defense work.

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