D-O is a character introduced in Star Wars: The Rise of Skywalker. He is a droid once owned by a Sith assassin named Ochi until his death. D-O was later reactivated by BB-8 and joined the Resistance.
Sith/Dark Jedi: Darth Vader • Palpatine/Darth Sidious • Maul • Count Dooku • Asajj Ventress• Barriss Offee • Kylo Ren • The Grand Inquisitor • Fifth Brother • Sixth Brother • Seventh Sister • Eighth Brother Clones/Stormtroopers: Clone Troopers • Rex • Wolffe • Hunter • Crosshair • Tech • Wrecker • Jesse • Echo • Fives • Gregor • Cody • Stormtroopers • Scout Troopers • Death Troopers • First Order Stormtroopers • Shoretroopers • Jumptroopers • Pyre • Captain Phasma
Others from films Prequel Trilogy: Padmé Amidala • General Grievous • Sebulba • Clegg Holdfast • Bail Organa • Jar Jar Binks • Jango Fett • Jobal Naberrie • Ruwee Naberrie • Sola Naberrie • Ryoo and Pooja Naberrie Original Trilogy: Leia Organa • Han Solo • Chewbacca • Lando Calrissian • Wilhuff Tarkin • Gial Ackbar • Mon Mothma • Wedge Antilles • Wicket W. Warrick • General Veers• Owen Lars • Beru Whitesun Lars • Bib Fortuna • Figran D'an and the Modal Nodes • Emperor's Royal Guard • Salacious Crumb • TIE Pilots • AT-AT drivers • Rebel Pilots • Nien Nunb • Jabba the Hutt • Wullf Yularen • Boba Fett Sequel Trilogy: Finn • Poe Dameron • Lor San Tekka • Maz Kanata • General Hux • First Order TIE Pilots • Supreme Leader Snoke • Sidon Ithano • Teedo • Unkar Plutt • Snap Wexley • Rose Tico • Janna • Zorii Bliss Anthology Series: Jyn Erso • Cassian Andor • Bodhi Rook • Orson Krennic • Chirrut Îmwe • Baze Malbus • Galen Erso • Lyra Erso • Qi'ra • Enfys Nest
Others from television Star Wars: The Clone Wars: Hondo Ohnaka • Katooni • Petro • Zatt • Ganodi • Gungi • Byph • Gwarm • Huyang • Cham Syndulla • Cad Bane • Numa • Bo-Katan Kryze • The Son • Steela Gerrera • Daughter • Father • Saw Gerrera • Talzin • Sugi • Savage Opress • Rafa Martez • Trace Martez Star Wars Rebels: Garazeb Orrelios • Sabine Wren • Hera Syndulla • Agent Alexsandr Kallus • Cikatro Vizago • Zare Leonis • Minister Maketh Tua • Baron Valen Rudor • Commandant Cumberlayne Aresko • Taskmaster Myles Grint • Zare Leonis • Jai Kell • Tseebo • Azmorigan • Senator Gall Trayvis • Imperial Combat Drivers • Kassius Konstantine • Quarrie • Ketsu Onyo • Captain Brom Titus • Governor Ryder Azadi • Ephraim and Mira Bridger • Grand Admiral Thrawn • Governor Arihnda Pryce • Chava • Gron • Fenn Rau • The Bendu • Gar Saxon • Commander Jun Sato • Mart Mattin • Gooti Terez • Jonner Jin • Morad Sumar • Ursa Wren • Tristan Wren • Yogar Lyste • Vult Skerris Star Wars Resistance: Kazuda Xiono • Tam Ryvora • Jarek Yeager • Torra Doza • Freya Fenris • Griff Halloran • Elrik Vonreg • Imanuel Doza
The Mandalorian: The Mandalorian • The Child • Cara Dune • Kuiil • IG-88 • Grand Moff Gideon • The Client • Paz Vizsla, Morgan Elsbeth Ahsoka: Marrok, Shin Hati, Baylan Skoll The Book of Boba Fett: TBA
