Let's talk about Zenless Zone Zero's Starlight Billy. Finally, he's here, the S-rank variant that our day-one boy deserves. His new form is similar to his classic A-rank look, but with more guns, more hair, and a familiar-looking red scarf.
To start saving up for him, make sure you use the new Zenless Zone Zero codes. You can also see which supports are best to use alongside him in our Zenless Zone Zero tier list.
Here's everything in our Zenless Zone Zero Starlight Billy guide:
What's the best Starlight Billy build?
| Rarity | S-Rank |
| Attribute | Physical |
| Specialty | Rupture |
| Best W-engine | Starlight Rider Faceplate |
| Best disk drive set | Yunkui Tales and Woodpecker Electro/Branch and Blade Song |
| Main stats | Crit rate/damage / HP / physical damage |
What are the best teams for Starlight Billy in Zenless Zone Zero?
Billy's teams are a little limited; however, we've found that he performs very well even without dedicated supports. He's just really good.
If you do want the highest numbers possible, you do kind of need Lucia in his teams as she's the best rupture support in the game. Dialyn, similarly, is the best stun agent, but Ju Fufu (with Pan Yinhu), Lighter, Trigger, and Norma can also work.
Here are Starlight Billy's best teams:
 Starlight Billy |
 Lucia |
 Dialyn |
Starlight Billy |
 Ju Fufu |
 Pan Yinhu |
Starlight Billy |
Lucia |
 Stun agent |
What are the best W-engines for Starlight Billy?
The best W-engine for Starlight Billy is his signature S-rank, the Starlight Rider Faceplate. This caters to his kit excellently, but there are some other options if you don't have the means to get it. If you have the Cauldron of Clarity from a 2025 event, you can use that, or any of the below:
- Starlight Rider Faceplate - limited s-rank
- Grill O'Wisp - a-rank
- Puzzle Sphere - a-rank
- Radiowave Journey - battle pass a-rank
What are the best disk drives for Starlight Billy?
The best relic set for Starlight Billy is a full set of Yunkui Tales. That's kind of the only choice if you want the best performance out of him. You can mix it with a two-piece set of either Woodpecker Electro or Branch and Blade Song for crit rate or damage, depending on what you need to boost.
These are the best disk drive sets for Starlight Billy:
- Yunkui Tales - four-piece set
- Woodpecker Electro - two-piece set
- Branch and Blade Song - two-piece set
When picking each piece of equipment, prioritize options with the following stats as main and sub-stat options:
- Crit rate/damage
- HP
- Physical damage bonus
What are Starlight Billy's priority skills?
You should focus on upgrading Starlight Billy's core skill, special and chain attacks, then everything else. While he can deal plenty of damage with his basic attack, his special and chain are where it's at.
- Core skill = special attack > chain attack > basic attack
Who are Starlight Billy's voice actors?
Here are the actors who provide Starlight Billy's snappy lines:
- English - Clifford Chapin
- Chinese - Chen Runqiu
- Japanese - Hayashi Yū
- Korean - Lee Joo-seung
Billy Kid's voice actor is the same for his A- and S-rank versions.
Who is Starlight Billy?
If you've played Zenless Zone Zero, you know who Billy is. He may have dropped the Kid surname, but he's still the same Starlight Knights-obsessed cyborg we know and love. You meet him right at the start of the game and get him as one of your free playable characters. Now, he's got an S-rank form you can pull on the banners.
Starlight Billy is still part of the Cunning Hares faction, though he wears a red scarf, similar to that of ZZZ's Lighter. We know he used to be part of the Sons of Calydon, but it seems this new form is specific to the Cunning Hares, as his old red jacket had the classic pig motif on it. Now, he has machinery on his arms that can apparently turn into cannons, guns, and more fun weaponry.