Officer Julien Lowe is a fictional Los Angeles Police Department officer and a new member of the Strike Team, a four-man anti-gang unit in the television drama series The Shield. Lowe is played by Michael Jace.

Julien was introduced as a rookie in the series and was paired with training officer Danielle "Danny" Sofer. Julien was frequently at odds with Danny due to his zealous Christianity and his "by the book" demeanor on the job, which often caused friction with his fellow officers. Early in his career, he observed the Strike Team stealing two bricks of cocaine during a bust and reported this to Captain Aceveda, against the advice of Danny. The captain himself warned Julien that the charges were serious and not to pursue them, but Julien went over his head and informed Internal Affairs. Julien eventually recanted his story when Vic Mackey threatened to reveal his homosexual affair with lover, Tomas Motyashik.

Julien's homosexuality placed him at great odds with his religion, even to the point that he didn't wear his vest to a bust, hoping the criminal would kill him. Through his pastor, he eventually went through sexual reorientation at his church and married the mother of a young boy caught spraying gang graffiti. Tomas was eventually arrested and when Julien refused to continue their relationship, Tomas outed him to the department. Two officers tormented him over his sexuality and when they were later fired, they gave Julien a "blanket party," seriously injuring him.

Julien was partnered with a new officer after Danny was fired from the Barn and upon her return, he preferred to work with his new partner, enjoying the comradeship. However, his new partner was involved in a scandal and fired from the force so Aceveda again paired Julien with Danny.

During Monica Rawling's tenure as captain, Julien became more outspoken and disapproved of her seizure policy to the point that he was going to transfer out of the department, but when the policy was shut down and Rawling was dismissed, Julien decided to remain. He soon became a training officer himself and was very tough on trainee Tina Hanlon. Due to many mistakes and Julien and Danny's recommendations, Tina was about to be dismissed until a possible scandal kept her in the Barn under the mentoring of Holland "Dutch" Wagenbach.

During the formation of a new Strike Team, Captain Claudette Wyms offered Julien to Kevin Hiatt as a possible addition to the team. Claudette made the offer to Julien, who was hesitant, mainly because of the thought of being partnered with Vic on a daily basis. After being assured that Mackey was going to be moved out of the team, Julien accepted the promotion, and is now an official member of the Strike Team.