Thought of the Jeture uses the same cast as the Escaflowne television series, along with some additional seiyuu for the new characters. Information on the cast is arranged below in alphabetical order by character. All names are written in Western order (family name last). Please note that the cast member notes are not intended to be complete compilations of the actors' work.

Alia	Nobuyuki Hiyama	Nobuyuki Hiyama played Hikitsu in Fushigi Yuugi, Hiei in Yuu Yuu Hakushou, and Orson in Record of Lodoss War: Chronicles of the Heroic Knight. He also played Ort in both the Escaflowne TV series and movie.
Allen	Shinichirou Miki	Shinichirou Miki played Kojiro (James) in Pokémon, Youji in Weiss Kreuz, Keisuke in Fushigi Yuugi, Tsuzuki in Yami no Matsuei, and Larva in the Vampire Princess Miyu TV series.
Shesta	Kappei Yamaguchi	Kappei Yamaguchi played the male Ranma in Ranma 1/2, Inuyasha in Inuyasha, and Etoh in Record of Lodoss War.
Dallet	Katsuaki Arima	Katsuaki Arima played Haruto Houjo in Haunted Junction and Kokyuu in Violinist of Hameln.
Dilandau	Minami Takayama	In the TV series, Minami Takayama played the roles of Chid and Celena in addition to Dilandau. Minami is the lead singer of the band Two-Mix. Her other anime voice roles include Nabiki Tendo in Ranma 1/2, Conan in Detective Conan, Kiki in Kiki's Delivery Service, and Ascot in Magic Knight Rayearth.
Folken	Jouji Nakata	Jouji Nakata played Gaav in Slayers Next, MPU in Cowboy Bebop, Mason in Bubblegum Crisis 2040, and Chesta in Record of Lodoss War (not to be confused with Escaflowne's Dragonslayer Shesta).
Gaddes	Touru Okawa	Touru Okawa played the squad commander in the first episode of Geobreeders and the narrator in Flame of Recca.
Gatty	Mitsuaki Madono	Mitsuaki Madono played Maron in Bakuretsu Hunters (Sorcerer Hunters) and Sorata in the X TV series.
Hitomi Kanzaki	Maaya Sakamoto	Maaya Sakamoto played Stella in Cowboy Bebop, Riho in Nightwalker, Aura in .hack//sign, and Leaf in Record of Lodoss War: Chronicles of the Heroic Knight.
Jeture	Rihoko Yoshida	Rihoko Yoshida played Rosay in Rose of Versailles, Teto in Nausicaa, and Michiru in Getter Robo.
Kio	Ginzou Matsuo	Ginzou Matsuo played Ruhm as well as Kio in the Escaflowne series and movie. He also played Arois Mosley in Gundam 0083 and Kagome's grandfather in Inuyasha.
Maid	Urara Miura	Urara Miura played Sayori in Misutenaide Daisy and Oz in Mermaid.
Meifia	Hiroko Kasahara	Hiroko Kasahara played Armitage in Armitage III, Ishtar in Macross II, and Fuu in Magic Knight Rayearth.
Merle	Ikue Ohtani	Ikue Ohtani played Pikachu in Pokémon, Sora Hasegawa in Ah My Goddess, Guni in Nightwalker, and Sailor Tin Nyanko in Sailor Moon.
Millerna	Aki Takeda	Mayumi Iizuka played both Sora and Yukari in the Escaflowne movie. In the TV series, Mayumi played Millerna and Yukari. Her other anime voice roles include Sayuka in Tenchi in Tokyo and Kasumi (Misty) in Pokémon.
Navio	Toshihiko Nakajima	Toshihiko Nakajima played Yasu in Captain Herlock: Endless Legacy, Colonel Stilbanov in Gasaraki, and Murayoshi in Inuyasha. He also played Teo in the Escaflowne TV series and movie.
Ort	Nobuyuki Hiyama	Nobuyuki Hiyama played Hikitsu in Fushigi Yuugi, Hiei in Yuu Yuu Hakushou, and Orson in Record of Lodoss War: Chronicles of the Heroic Knight. He also played Alia in Thought of the Jeture.
Pyle	Takehiro Murozono	Takehiro Murozono played Kamaros in Nazca and Kuzui and Haruma in Bubblegum Crisis 2040.
Reeden	Yuuji Ueda	Yuuji Ueda played Sanosuke in Rurouni Kenshin and the twins Amiboshi and Suboshi in Fushigi Yuugi.
Van	Tomokazu Seki	Tomokazu Seki played Kamui in X: The Movie, Touya in Card Captor Sakura, Chichiri in Fushigi Yuugi, and Ken in Weiss Kreuz.