Kamen Rider 4 (仮面ライダー4号, Kamen Raidā Yongō) may refer to any the following characters. The concept of Kamen Rider 4 was raised in 1972's Televi-Magazine article, "100 Secrets of Kamen Rider". The producer Toru Hirayama had also considered to making Kazuya Taki as Kamen Rider 4 in the TV series instead of Joji Yuki, but this idea fell through. Kamen Rider Drive Super Hero Taisen GP: Kamen Rider 3 D-Video Special: Kamen Rider 4 Episode 1: Deathmatch! The Kamen Rider Died Three Times!! Episode 2: F