An Unknown Friend (1978) featured a cast of 25 tracked actors. Of these, 8 (32%) are still alive today and 17 have passed away. The oldest surviving cast member is Heidi Krohn, age 92. This film starred Åke Lindman and Bruno O'Ya.
32% still with us· verified cast
Survivorship
Cast Reunion Index: 32% still living
Avg. Age at Death: 76.6 yrs
Deaths by Year
1978
1980
1989
1992
1997
2000
2002
2009
2010
2014
2025
2026
Cast25 members
| Person | Character | Status | DOB | Age | DOD | Age in 1978 |
|---|---|---|---|---|---|---|
 Åke Lindman inspector Olavi Susikoski | inspector Olavi Susikoski | Deceased | 11/01/1928 | 81 | 03/03/2009 | 50 |
 Bruno O'Ya Bruno Linden | Bruno Linden | Deceased | 12/02/1933 | 69 | 09/10/2002 | 45 |
 Kate O'Mara Karen Linden | Karen Linden | Deceased | 10/08/1939 | 74 | 30/03/2014 | 39 |
 Anne Pohtamo Harriet Berg | Harriet Berg | Living | 15/08/1955 | 71 | — | 23 |
 Nanny Westerlund Lydia Lindström | Lydia Lindström | Deceased | 29/04/1895 | 93 | 10/02/1989 | 83 |
 Jukka-Pekka Palo Risto Antero Ahvenainen | Risto Antero Ahvenainen | Living | 07/08/1954 | 72 | — | 24 |
 Risto Mäkelä Unto Åkerblom | Unto Åkerblom | Deceased | 14/01/1924 | 68 | 19/03/1992 | 54 |
 Pekka Autiovuori Etsivä Laine | Etsivä Laine | Living | 19/03/1946 | 80 | — | 32 |
 Kauko Helovirta Tohtori Oiva Berg | Tohtori Oiva Berg | Deceased | 21/10/1924 | 72 | 13/09/1997 | 54 |
 Hannu Huuska Tavaratalon vaateosaston myyjä | Tavaratalon vaateosaston myyjä | Living | 24/02/1949 | 77 | — | 29 |
 Kaarlo Juurela Toimistovirkailija kirkkoherranvirastossa | Toimistovirkailija kirkkoherranvirastossa | Deceased | 30/03/1929 | 80 | 02/02/2010 | 49 |
Leila Itkonen Lydia Lindström | Lydia Lindström | Deceased | 21/05/1926 | 83 | 06/12/2009 | 52 |
 Martti Kuningas Yömajan valvoja | Yömajan valvoja | Deceased | 19/02/1933 | 47 | 07/04/1980 | 45 |
 Heidi Krohn Yöhoitaja teho-osastolla | Yöhoitaja teho-osastolla | Living | 17/08/1934 | 92 | — | 44 |
Martti Kuisma Taksikuski | Taksikuski | Deceased | 27/08/1936 | 63 | 01/01/2000 | 42 |
 Lauri Leino Yömajan asukki | Yömajan asukki | Deceased | 21/03/1904 | 73 | 20/03/1978 | 74 |
 Tiia Louste Matkatoimistovirkailija | Matkatoimistovirkailija | Living | 28/05/1947 | 79 | — | 31 |
 Marita Nordberg Rappioalkoholisti | Rappioalkoholisti | Deceased | 15/02/1929 | 80 | 30/10/2009 | 49 |
 Pertti Palo Portieeri | Portieeri | Deceased | 11/11/1934 | 75 | 13/08/2010 | 44 |
 Esa Saario Tietokoneoperaattori | Tietokoneoperaattori | Deceased | 22/11/1931 | 93 | 26/09/2025 | 47 |
 Elvi Saarnio Nakkikioskin myyjä | Nakkikioskin myyjä | Deceased | 28/05/1919 | 83 | 21/06/2002 | 59 |
 Ismo Sajakorpi Ahvenaisen ryyppykaveri | Ahvenaisen ryyppykaveri | Living | 18/05/1944 | 82 | — | 34 |
 Seela Sella Rouva Loimaa | Rouva Loimaa | Deceased | 30/12/1936 | 89 | 28/09/2026 | 42 |
 Lars Svedberg Vakuutustarkastaja Rantamaa | Vakuutustarkastaja Rantamaa | Deceased | 23/01/1945 | 80 | 06/12/2025 | 33 |
Leena Uotila Tarjoilija | Tarjoilija | Living | 16/06/1947 | 79 | — | 31 |