Li'l D proclaims himself as the unofficial leader of the Westley School's music class, whether they like it or not. He is bright, talented, confident to a fault, and is incredibly tenacious when it comes to music. Through sheer determination (as well as breaking and entering), he manages to recruit Sunny Bridges as the class's new music teacher. Although Li'l D considers himself remarkably streetwise, his overconfidence often leads him into trouble. He is considered the shortest member of the class (despite being taller than Kim and Eddie if not for his hair), standing about 4'6". Li'l D has never met his father, although he does not seem bothered by it. His instrument is the drums. In some songs, he plays a different instrument like in "The Hunt for Red Blobtober". Although he has never revealed his actual name, no one seems to notice.
- Then it's settled.
- Let's crank this thang up!
- Yes sir! Yes ma'am! The whole world loves Extreme Ham!
- Get em shorty.
- Hey, y'all look who I found. International Music Sensation, Sunny Bridges.
- Philly Phil, can you hear us?
- Why you mad at Santa?
- How bout you, Eddie?
- All it takes is one.
- For your third album you went all futuristic and called yourself Sunny Wan Kenobi.
- Hey Sunny, what happened to your voice? You sounded like a cartoon character.
- I ain't no sellout. He's a sellout.
- I'm Lil' D, and on these drums, I throwDOWN!
- Uh uh. I just gotta run faster than you!
- We gon' have to do something about this!
- So just get her back!
- He wears a 1970s/80s Atlanta Braves baseball cap in the pilot and a captain's hat for the rest of the show.
- Li'l D's dream is to jam with Sunny Bridges as seen in his dream in the pilot.
- In "The Devil and Lil' D", he reveals that he can play the fiddle as he tries to get his soul out of the contract.
- He is the fifth tallest member of the class (despite being considered the shortest), standing about 4'6". Only shorter than Tamika, Philly Phil, Madison, and Kam.
- In 2018, Li'l D was originally going to cameo in OK K.O.!'s "Crossover Nexus" but his scene was cut due to time constraints. As a result, the creators made up for the deleted scene by having Sunny Bridges cameo in their show's final episode called "Thank You for Watching the Show."
- When the show was in its early production, Li'l D was voiced by a young, pubescent boy; however, co creator Andre 3000 wanted to go a different direction because he wanted a consistent voice for Li'l D. So he called Sylvia Holloway, aka Small Fry on the phone one day because he wanted her to voice "a boy on a cartoon that he was starting". Small Fry and Andre 3000 knew each other since high school and played basketball a lot, and Andre 3000 wanted to give Fry the role because he remembered her "talking smack" on the basketball court. She was the person that he was in search of. Small Fry said that she wanted to give the opportunity away to one of her friends, but 3000 said to her, "most boy cartoon characters are played by women because their voices don't change." After that, she just had to take him up on his offer! When Fry arrived at CN Studios for the recording session, she thought it was just her and Andre but to her surprise, the executive producers and other cartoon voice overs were in the booth. She was kind of nervous at first, but Andre kept coaching her to be herself at the mic. After her mic performance, she was signed up for 2 seasons of the show along with the other vets!