Alex Sinclair is a colorist, who also provides color for covers on the Young Justice comic.
He is well known for his collaborations with Alan Moore, Jim Lee and Scott Williams. He has previously worked on Astro City, Alan Moore's Top 10, Harley Quinn and All-Star Batman and Robin, and with Lee and Williams on Batman: Hush, Superman, WildCATs, Gen¹³, and Divine Right.
- Young Justice #0: "Stopover"
- Young Justice #1: "Haunted"
- Young Justice #2: "Monkey Business"
- Young Justice #3: "Hack and You Shall Find"
- Young Justice #4: "By Hook or by Web"