Oricon News' fall 2026 anime listing gives LEGO ONE PIECE a September 29, 2026 start on Netflix and names Atomic Cartoons as the studio. The official One Piece website describes the two-part LEGO special as a worldwide Netflix exclusive from that date.
The official site names Usopp as the protagonist. In Oricon's synopsis, the story opens on Drum Island just after Chopper joins the crew. Chopper doesn't know about the adventures in the East Blue, so Usopp takes on the role of "builder" and tells heavily embellished versions of the exploits so far. The official site says his stories run from the East Blue to the Grand Line.
Oricon lists Kappei Yamaguchi as Usopp, Mayumi Tanaka as Luffy, Kazuya Nakai as Zoro, Akemi Okamura as Nami, Hiroaki Hirata as Sanji and Ikue Otani as Chopper. Eiichiro Oda is credited as the original creator. Gizmodo's review says each part runs a little over 30 minutes.