Sai - One Piece

One Piece

Guest cast, played by Kōichi Hashimoto

Episode 8x59: A Formidable, Unknown Warrior! Here Comes Lucy! (Feb 16, 2014)
Episode 8x63: Rivalry of Warriors! B Block on Fire! (Mar 23, 2014)
Episode 8x65: Fighting Fish Attack! Break through the Iron Bridge of Death (Apr 6, 2014)
Episode 8x66: Adventure! The Island of Fairies, Green Bit (Apr 13, 2014)
Episode 8x67: The Unknown World - Tontatta Kingdom (Apr 20, 2014)
Episode 8x68: Scheme of the Century - Doflamingo Gets Moving (Apr 27, 2014)
Episode 8x70: A Blow of Anger! A Giant vs. Lucy! (May 11, 2014)
Episode 8x71: The Destructive Cannon Explodes! A Close Call for Lucy (May 18, 2014)
Episode 8x72: The Legendary Pirate - Boss Chinjao (May 25, 2014)
Episode 8x73: Light and Shadow - The Darkness Lurking in Dressrosa! (Jun 1, 2014)
Episode 8x74: Sortie - The Legendary Hero, Usoland (Jun 8, 2014)
Episode 8x75: The Fierce Battle's Conclusion - Lucy vs. Chinjao (Jun 15, 2014)
Episode 8x76: Luffy and the Fated Gladiator Rebecca (Jun 22, 2014)
Episode 8x83: The Strongest Warrior! Logan vs. Rebecca (Aug 17, 2014)
Episode 8x84: Shock! The Toy Soldier's True Identity (Aug 24, 2014)
Episode 8x95: The Castle Moves! Elite Officer Pica Emerges (Nov 9, 2014)
Episode 8x103: The Legend is Back! Kyros' All-Out Attack! (Jan 11, 2015)
Episode 8x110: Gathering into a Powerful Front! Luffy and a Group of Brutal Warriors! (Mar 15, 2015)
Episode 8x111: Steady Progress! Luffy's Army vs. Pica! (Mar 22, 2015)
Episode 8x112: A Shocking Confession! Law's Soulful Vow! (Mar 29, 2015)
Episode 8x113: A Big Collision! Chief of Staff Sabo vs. Admiral Fujitora (Apr 5, 2015)
Episode 8x114: A Desperate Situation - Luffy Gets Caught in a Trap! (Apr 12, 2015)
Episode 8x116: A United Front – Luffy's Breakthrough to Victory (Apr 26, 2015)
Episode 8x117: The Second Samurai – Evening Shower Kanjuro Appears (May 3, 2015)
Episode 8x120: Invulnerable! The Terrifying Headcracker Doll Army (May 24, 2015)
Episode 8x121: Life-Risking! Luffy is the Trump Card to Victory (May 31, 2015)
Episode 8x124: Anger Explosion - Luffy and Laws's Ultimate Secret Plan (Jun 21, 2015)
Episode 8x133: To Be Free! Law's Injection Shot Blasts! (Aug 30, 2015)
Episode 8x135: A Decisive Battle Against the Executives! Proud Hajrudin! (Sep 13, 2015)
Episode 8x136: The Battle of Love! The New Leader Sai vs. Baby 5! (Sep 20, 2015)
Episode 8x137: The Man's Pride - Bellamy's Last Charge! (Sep 27, 2015)
Episode 8x144: Moving Across the Ground! The Giant Statue Pica's Surprise Maneuver! (Nov 15, 2015)
Episode 8x145: A Decisive Battle in Midair! Zoro's New Special Secret Technique Blasts! (Nov 22, 2015)
Episode 8x146: So Long! Bellamy's Farewell Blow! (Nov 29, 2015)
Episode 8x148: A Blade of Tenacity! The Gamma Knife Counterattack! (Dec 13, 2015)
Episode 8x152: Fourth Gear! The Phenomenal Bounce-man! (Jan 17, 2016)
Episode 8x153: A Massive Counterattack! Doflamingo's Awakening! (Jan 24, 2016)
Episode 8x154: Luffy! An All-Out Leo Bazooka! (Jan 31, 2016)
Episode 8x156: Tears of Miracles! Mansherry's Fight! (Feb 21, 2016)
Episode 8x157: As Long as We Breathe! Stop the Deadly Birdcage (Feb 28, 2016)
Episode 8x158: Dead or Alive! A Fateful Countdown (Mar 6, 2016)
Episode 8x159: Strike the Heavens - Luffy's King Kong Gun of Rage (Mar 20, 2016)
Episode 8x160: To Freedom! Dressrosa Overjoyed! (Mar 27, 2016)
Episode 8x161: Unprecedented - The Shocking Decision of Admiral Fujitora! (Apr 3, 2016)
Episode 8x163: The Birth of a Legend - The Adventure of Sabo the Revolutionary! (Apr 17, 2016)
Episode 8x164: The Brother's Bond - The Story of Luffy and Sabo's Reunion (Apr 24, 2016)
Episode 8x167: A State of Emergency! Rebecca Is Kidnapped! (May 15, 2016)
Episode 8x168: The Bond Between Father and Daughter! Kyros and Rebecca! (May 22, 2016)
Episode 8x169: Manly Spirit - Luffy vs. Fujitora in a Head-to-Head Clash (May 29, 2016)
Episode 8x170: No Way Out! Admiral Fujitora's Ruthless Pursuit! (Jun 5, 2016)
Episode 8x171: Sons' Cups - Straw Hat Fleet is Formed! (Jun 12, 2016)
Episode 8x172: The Numerous Rivals Struggle Amongst Themselves - The Raging Monsters of the New World (Jun 19, 2016)
Episode 9x139: In the Dark Recesses of the Holyland! A Mysterious Giant Straw Hat! (May 19, 2019)
Episode 9x140: The Holyland in Tumult! The Targeted Princess Shirahoshi! (May 26, 2019)
Episode 9x142: Sabo Enraged! The Tragedy of the Revolutionary Army Officer Kuma! (Jun 9, 2019)