The Devil's Prophecy (悪魔の預言 Akuma no Yogen) is the third episode of Ultraman Tiga.
Captain Iruma was interviewed where she discussed the matter of Ultraman Tiga as humanity's hero in a talk show. Suddenly, the hostess appears to be possessed, demanding humans to surrender to the Killie people before leaving it's host. After discussing about the Killie people with fellow TPC members, Iruma went to her office where a Killie (addressing himself as a prophet) demands Iruma and humanity to surrender or else the K1 district will be destroyed. As he went away, the K1 District was destroyed by a surfacing inferno.
With Iruma returned to her office, she uses her son's photo frame to detect the man's thumbprint, revealing he's not a true prophet, rather a normal citizen named Mitsuo Itahashi. She secretly went to his house to investigate the man but only to found that he died three years ago via his abandoned AI computer. Killie captured Iruma but only for Daigo to rescue her moments later. With Point #33 about to explode, Daigo commands all citizens to evacuate the area. Once the people were safety evacuated and Ultraman Tiga had arrived to save Iruma from the explosion, Kyrieloid revealed his true form after exposing himself to his own fiery energy, and began fighting Tiga. The two seemed evenly matched until Tiga transformed to Sky type. While Kyrieloid’s speed was impressive, Tiga’s was greater and he began gaining the upper hand with a barrage of kicks until Kyrieloid began using his Creptic Ray to gain the advantage. Kyrieloid kept up his assault and managed to weaken Tiga, but GUTS and Iruma called support for Tiga, giving him new strength. Tiga then froze Kyrieloid with his Tiga Freezer attack before switching back to Multi-Type and blowing Kyeloid to pieces with his Zepellion Ray.
- Daigo Madoka (マドカ・ダイゴ Madoka Daigo): Hiroshi Nagano (V6) (長野 博（Ｖ６） Nagano Hiroshi (Bui Shikkusu))
- Rena Yanase (ヤナセ・レナ Yanase Rena): Takami Yoshimoto (吉本 多香美 Yoshimoto Takami)
- Megumi Iruma (イルマ・メグミ Iruma Megumi): Mio Takaki (高樹 澪 Takaki Mio)
- Seiichi Munakata (ムナカタ・セイイチ Munakata Seiichi): Akitoshi Ohtaki (大滝 明利 Ōtaki Akitoshi)
- Masami Horii (ホリイ・マサミ Horii Masami): Yukio Masuda (増田 由紀夫 Masuda Yukio)
- Tetsuo Shinjoh (シンジョウ・テツオ Shinjō Tetsuo): Shigeki Kagemaru (影丸 茂樹 Kagemaru Shigeki)
- Jun Yazumi (ヤズミ・ジュン Yazumi Jyun): Yoichi Furuya (古屋 暢一 Furuya Yōichi)
- Souichiro Sawai (サワイ・ソウイチロウ Sawai Sōichirō): Tamio Kawachi (川地 民夫 Kawachi Tamio)
- Masayuki Nahara (ナハラ・マサユキ Nahara Masayuki): Take Uketa (タケ・ウケタ )
- Tetsuji Yoshioka (ヨシオカ・テツジ Yoshioka Tetsuji): Ken Okabe (岡部 健 Okabe Ken)
- Ultraman Tiga (ウルトラマンティガ Urutoraman Tiga): Yuji Machi (真地 勇志 Machi Yuji) (voice)
- Ultraman Tiga Volume 1 Features Episodes 1-4.
- This episode was later featured in Ultraman Retsuden episode 6 "The Stalking Shadow of the Devil! Kyrieloid Appears!!"