 | Shinji Yamada Tomoyuki Saiki (college student) Birthday: March 25, 1937 | 19 | October 15, 2007 (70) |
 | Kyoko Aoyama Chisako Hosokawa (art student) Birthday: November 23, 1935 | 20 | January 12, 2020 (84) |
 | Machiko Kitagawa Yoshiko Hosokawa (Chisako's elder sister) Birthday: April 8, 1932 | 24 | 93 |
| Kyoko Mori Misao Hayashi (Tomoyuki's fiancée) Birthday: March 4, 1934 | 22 | 91 |
 | | 51 | October 9, 1993 (88) |
 | | 46 | July 19, 1995 (84) |
 | Eitarō Ozawa Tatsunari Ube (Saiki's uncle & professor) Birthday: March 27, 1909 | 47 | April 23, 1988 (79) |
 | | - | - |
 | Seijirô Onda Matsushima, a private detective Birthday: May 1, 1910 | 46 | November 28, 1974 (64) |
| Akira Sera Apartment resident Birthday: October 14, 1912 | 44 | 112 |
