叶茨有着橙色的头发和胡须。他穿着白色的衬衫和黑色的吊带裤，系着黑色的领带和灰色的金扣头腰带。他的右手带着手表，右胸挂着手枪匣，里面是一把史密斯威尔森5900系列（Smith and Wesson 5900-series）手枪。
- 在“灵能侦探卡特曼”中，叶茨被称作为“路”（Lou）。他也一度被称为哈里斯警探（Detective Harris），直到“美食评论家”他才被正式命名为哈里斯·叶茨。
- 在“浣熊侠出击”中，叶茨的角色地位如同《蝙蝠侠》里的詹姆斯·戈登（James Gordon）局长一样。
- "Christian Rock Hard" - Shows Stan, Kyle and Kenny what happens to famous people who download their music.
- "Casa Bonita" - Tries to find Butters and arrests Eric Cartman for Butters' abduction.
- "The Jeffersons"
- "Cartman's Incredible Gift" - Works with Eric Cartman and Kyle Broflovski to solve numerous murders.
- "The Death of Eric Cartman" - Talks to the escaped convicts who are holding people hostage.
- "Mr. Garrison's Fancy New Vagina" (shaved esque re-appears)
- "Free Willzyx" - Tries to solve the disappearance of a whale which The Boys stole after they thought the whale could talk.
- "Mystery of the Urinal Deuce"
- "Miss Teacher Bangs a Boy" - Investigates a sexual relationship between Ike Broflovski and Ms. Stevenson.
- "Cartman Sucks" - Cartman goes to him when he cannot find a picture of him and Butters.
- "Britney's New Look" (background) - Seen taking photos of Britney Spears along with many other people.
- "Eek, A Penis!" - Helps Mr Garrison find his penis.
- "The China Probrem" - Refuses to pursue the Indiana Jones and the Kingdom of Crystal Skull case because he has not seen the film.
- "The Coon"
- "Butters' Bottom Bitch" - Seen going undercover as a prostitute, after learning about a prostitution ring forming in South Park.
- "Medicinal Fried Chicken" (background) - Seen while Officer Barbrady gives a speech.
- "It's a Jersey Thing" (background)
- "Royal Pudding" - Tells Mr. Mackey that tooth decay is gone.
- "City Sushi" - Tells Stephen Stotch that his son caused a war between City Wok and City Sushi.
- "A Nightmare on Face Time" - Investigates a robbery with the help of Stan Marsh.
- "Informative Murder Porn" - He and other police officers investigate the murder of a woman.
- "The Magic Bush" - Thomas Tucker and Laura Tucker go to him to get the drone issue under control.
- "Cock Magic" - He was called Detective Harris in this episode.
- "#HappyHolograms" - He was also called Detective Harris in this episode.
- "The City Part of Town"
- "You're Not Yelping" - Goes overboard with yelper reviews.
- "Naughty Ninjas" - He and the rest of the South Park Police refuse to enforce the law after Officer Barbrady is fired.
- "PC Principal Final Justice"- Seen in the crowd of people standing in front of the Whole Foods Market.
- "Not Funny" - Seen giving a press conference to the people of South Park about the impending dangers of TrollTrace.com.
- "Franchise Prequel" - He insists that the townspeople cannot with Mark Zuckerberg invading people's homes, riding their vehicles, as well as eating their food when never breaks the law.
- "Sons A Witches" - Talks to Eric Cartman about the kidnapping of Heidi Turner.
- "Dead Kids" - Seen outside the school after the shooting.
- "A Boy And A Priest" - Seen in church.
- "The Problem with a Poo" - Seen outside after another school shooting.
- "The Scoots" - Holds a meeting in the Park County Community Center.
- "Time To Get Cereal" - Mistakes ManBearPig's attacks with school shootings and gets annoyed by not playing Read Dead Redemption II.
- "Nobody Got Cereal?" - Continue his investigations on ManBearPig attacks. Comes to a conclusion that he must believe in ManBearPig.
- "Bike Parade" - Seen smoking and watching the bike parade with the other officers.