Butt Detective the Movie: Mystery of the Ruins of Tentōmushi (2020) featured a cast of 12 tracked actors. Of these, 12 (100%) are still alive today. The oldest surviving cast member is Kazuhiro Yamaji, age 72. This film starred Yuko Sanpei and Ayaka Saito.
100% still with us· verified cast
Survivorship
Cast Reunion Index: 100% still living
Cast12 members
| Person | Character | Status | DOB | Age | DOD | Age in 2020 |
|---|---|---|---|---|---|---|
 Yuko Sanpei Butt Detective (voice) | Butt Detective (voice) | Living | 28/02/1986 | 40 | — | 34 |
 Ayaka Saito Brown (voice) | Brown (voice) | Living | 02/06/1988 | 38 | — | 32 |
 Kazuhiro Yamaji Butt Dandy (voice) | Butt Dandy (voice) | Living | 04/06/1954 | 72 | — | 66 |
 Seiran Kobayashi Panta (voice) | Panta (voice) | Living | 25/09/2004 | 21 | — | 16 |
 Inuko Inuyama Itako (voice) | Itako (voice) | Living | 16/12/1965 | 60 | — | 55 |
 Ryosuke Takei Itakichi (voice) | Itakichi (voice) | Living | 07/06/1972 | 54 | — | 48 |
 Takahiro Sakurai Kaitō U (voice) | Kaitō U (voice) | Living | 13/06/1974 | 52 | — | 46 |
 Ikkei Watanabe Chief Maltese (voice) | Chief Maltese (voice) | Living | 27/10/1962 | 63 | — | 58 |
 Kenji Sugimura Kubifutoshi (voice) | Kubifutoshi (voice) | Living | 02/07/1985 | 41 | — | 35 |
 Tetsuhiro Ikeda Permanent (voice) | Permanent (voice) | Living | 31/10/1970 | 55 | — | 50 |
 Katsuyuki Konishi Mimitogari (voice) | Mimitogari (voice) | Living | 21/04/1973 | 53 | — | 47 |
 Makoto Nakamura Koimayu (voice) | Koimayu (voice) | Living | 16/03/1963 | 63 | — | 57 |