The T4 experts were medical experts who were employed by the Zentraldienststelle-T4 (‘T4 service center’) to organize and carry out the killings of the Aktion T4 Euthanasia Program and based on questionnaires with data on the sick and disabled, decided Which would be the victims who would be killed by gas in special institutions. From an internal document of the organization T4 a list of 40 doctors who worked of experts for the Aktion T4 appears. 1
List of experts T4
| Doctor | Lifetime | Season of expert |
| Hermann Pfannmüller | June 8, 1886 - April 10, 1961 | Since November 17, 1939 |
| Ernst Wagenknecht | October 23, 1880 -? | November 17, 1939 - February 16, 1940 |
| Ernst Hefter | January 11, 1906 - April 11, 1947 | Since November 17, 1939 |
| Hans Heinze | October 18, 1895 - February 2, 1983 | Since November 17, 1939 |
| Walter Kaldewey | December 10, 1896 - January 13, 1954 | February 28, 1940 - January 29, 1941 |
| Carl-Heinz Rodenberg | November 19, 1904 - 1995 | February 28, 1940 - October 14, 1940 |
| Arthur Schreck | August 15, 1878 - October 3, 1963 | February 28, 1940 - November 30, 1940 |
| Theodor Steinmeyer | December 7, 1897 - May 26, 1945 | Since 28 February 1940 |
| Hermann Paul Nitsche | November 25, 1876 - March 25, 1947 | Since 28 February 1940 |
| Friedrich Mennecke | October 6, 1904 - December 28, 1947 | Since 28 February 1940 |
| Friedrich Panse | March 30, 1899 - December 6, 1973 | May 14, 1940 - December 16, 1940 |
| Carl Schneider | December 19, 1891 - December 11, 1946 | Since April 20, 1940 |
| Kurt Pohlisch | March 28, 1893 - February 6, 1955 | 30 April 1940 - 6 January 1941 |
| Konrad Zucker | December 7, 1893 - August 31, 1978 | Since May 8, 1940 |
| Georg Renno | January 13, 1907 - October 4, 1997 | Since 31 May 1940 |
| Otto Reisch | October 23, 1891 - 1977 | April 30, 1940 - July 2, 1940 |
| Otto Hebold | July 27, 1896 - January 4, 1975 | Since May 8, 1940 |
| Rudolf Lonauer | 9 January 1907 - 5 May 1945 | Since 9 May 1940 |
| Hans-Alois Schmitz | July 1, 1899 - March 6, 1973 | July 30, 1940 - November 14, 1940 |
| Berthold Kihn | March 10, 1895 - January 19, 1964 | Since June 5, 1940 |
| Günter Munckwitz | March 13, 1912 - 1970 | July 25, 1940 - January 31, 1941 |
| Wilhelm Schumacher | November 19, 1908 -? | Since 5 August 1940 |
| Oskar Begusch | January 21, 1897 - January 11, 1944 | September 2, 1940 - July 4, 1941 |
| Ernst Sorger | November 19, 1892 - August 9, 1945 | September 2, 1940 - March 8, 1941 |
| Walter Schmidt | July 9, 1910 - January 31, 1970 | September 2, 1940 - December 1940 |
| Friedrich Mauz | May 1, 1900 - July 7, 1979 | Since 6 September 1940 |
| Valentin Faltlhauser | November 28, 1876 - January 8, 1961 | Since 6 September 1940 |
| Hanns Heene | August 11, 1896 - April 13, 1948 | September 6, 1940 - December 1940 |
| Franz Fehringer | June 14, 1903 -? | September 6, 1940 - January 13, 1941 |
| Hans Bertha | April 14, 1901 - January 3, 1964 | September 30, 1940 - March 1941 |
| Erwin Jekelius | June 5, 1905 - May 8, 1952 | October 14, 1940 - February 1941 |
| Robert Müller | January 14, 1886 - June 2, 1945 | Since March 4, 1941 |
| Werner Villinger | October 9, 1887 - August 8, 1961 | Since 28 March 1941 |
| Erich Straub | August 26, 1885 - April 29, 1945 | Since July 8, 1941 |
| Gerhard Wischer | February 1, 1903 - November 4, 1950 | Since August 2, 1941 |
| Curt Schmalenbach | February 24, 1910 - June 15, 1944 | Since 28 August 1941 |
| Victor Ratka | December 27, 1895 - April 5, 1966 | Since 10 September 1941 |
| Curd Runckel | August 4, 1913 -? | Ab 3 October 1942 |
| Alfred Schulz | September 13, 1890 - 1947 | Since May 7, 1943 |
| Gustav Schneider | April 15, 1908 -? | Since 31 May 1943 (?) |
The questionnaires were sent in the form of a copy to three or four experts. The result was gathered by the T4-Zentraldienststelle and presented to one of the three Obergutachter (“senior experts”) who had the last word.
List of T4-Obergutachter
| Person | Lifetime | Season of expert |
| Werner Heyde | April 25, 1902 - February 13, 1964 | October 1939 - December 1941 |
| Hermann Paul Nitsche | November 25, 1876 - March 25, 1948 | Since 28 February 1940 |
| Herbert Linden | September 14, 1899 - April 27, 1945 | Since October 1939 |
List of experts for child euthanasia
There were also three medical experts for the Aktion T4 for children, started shortly before the adult:
| Person | Lifetime | Season of expert |
| Werner Catel | June 27, 1894 - April 30, 1961 | From autumn 1939 |
| Hans Heinze | October 18, 1895 - February 2, 1983 | From autumn 1939 |
| Ernst Wentzler | September 3, 1891 - August 9, 1973 | From autumn 1939 |
References
- Back to top↑ Heidelberger Dokument, Blatt 127891, quoted according to the fac-simile in Klee “‘Euthanasie’ im NS-Staat,” page 228.