Nobel prize-winning French physicist (1859-1906) who in the years before his untimely death in a traffic accident became enthusiastic about the phenomena he witnessed in the seance room. 

Moritz Dechamps is a German researcher investigating quantum effects in the context of micro-PK experiments.  

British psychologist and parapsychologist who has conducted research in ESP and  DMILS (direct mental interaction with living systems).  

German philosopher and psychologist (1867-1947) credited with originating the term ‘parapsychology’. During his early career he experimented successfully with telepathy, but later became a vocal sceptic.

British author and psi investigator (1890-1986), noted for a robustly critical approach that often brought him into conflict with colleagues. 

Rosemary Dinnage (1928-2015), a journalist and author, was named by The Observer in 2011 as one of Britain's top 300 intellectuals. Dinnage had an active in interest in parapsychology...

Oxford classics professor (1893-1979), an authority on supernatural beliefs in antiquity. His 1934 paper ‘Why I Do Not Believe in Survival’ has been frequently cited.

In later life, the creator of Sherlock Holmes became an evangelist for spiritualism. 

German philosopher (1839-1899), a prominent theoretician and proponent of research into postmortem survival, psychic phenomena and the unconscious mind. 

 American philosopher who in 1961 published a major study of psi phenomena, endorsing their existence and arguing that they constitute evidence for postmortem survival. This article describes and critiques his ideas.