Diagnoses : Psychological : Schizophrenia

John Altoon (November 5, 1925 – February 8, 1969) was an American artist. Born in Los Angeles to immigrant Armenian parents, from 1947 to 1949 he attended the Otis Art Institute, from 1947 to 1950 he also attended the Art Center College of Design in Los Angeles, and in 1950 the Chouinard Art Institute. Altoon was a prominent figure in the LA art scene in the 1950s and 1960s. Exhibitions of his work have been held at the Museum of Contemporary Art San Diego, Whitney Museum of American Art, New York, Corcoran Gallery, Washington D.C, Fine Arts Museums of San Francisco, The Baxter Museum, Pasadena, and The Los Angeles County Museum of Art (opened June 2014).

Martín Ramírez (January 30, 1895 – February 17, 1963) was a self-taught artist who spent most of his adult life institutionalized in California mental hospitals, diagnosed as a catatonic schizophrenic. He is considered by some to be one of the 20th century's best self-taught masters.

Marie-Louise Victorine Bessarabo (pen names, Héra Mirtel, Juliette de Boulogne, Juliette de Lotus; 24 October 1868 - 21 March 1931) was a French writer, woman of letters, militant feminist, salonnier, lecturer, and ardent suffragist. She was also a spiritist and a "believer in the Black Mass," a stock exchange gambler, a plotter for the restoration of the royalist regime in France, as well as an advisor of other women in matrimony and affairs of the heart. Mirtel was famous for the murder of her second husband, Georges Bessarabo, whose body was sent in a "bloody trunk" "from Paris to Nancy, by rail. Brilliantly defended by Vincent de Moro-Giafferi, she was sentenced to twenty years' imprisonment. She was suspected of having murdered her first husband as well.

Robert John Bardo (born January 2, 1970) is an American man serving life imprisonment without parole after being convicted for the July 18, 1989, murder of American actress and model Rebecca Schaeffer, whom he had stalked for three years.

Sean Richard Sellers (May 18, 1969 – February 4, 1999) was an American triple murderer, one of 22 persons in the United States since the reinstatement of the death penalty in 1976 to be executed for a crime committed while under the age of 18, and the only one to have been executed for a crime committed under the age of 17. His case drew worldwide attention due to his age as well as his jailhouse conversion to Christianity and his claim that demonic possession made him innocent of his crimes.

Christine Costner Sizemore (April 4, 1927 – July 24, 2016) was an American woman who, in the 1950s, was diagnosed with multiple personality disorder, now known as dissociative identity disorder. Her case was depicted in the 1950s book The Three Faces of Eve, written by her psychiatrists, Corbett H. Thigpen and Hervey M. Cleckley, upon which the film of the same name, starring Joanne Woodward, was based. She went public with her identity in the 1970s.

Herbert William Mullin (April 18, 1947 – August 18, 2022) was an American serial killer who killed 13 people in California in the early 1970s. He confessed to the killings, which he claimed prevented earthquakes. In 1973, after a trial to determine whether he was legally insane or culpable, he was convicted of two murders in the first-degree and nine in the second-degree, and sentenced to life imprisonment. During his imprisonment, he was denied parole eight times.Mullin and Edmund Kemper overlapped in their 1972 to 1973 murder sprees, adding confusion to the police investigations and ending with both being arrested, within a few weeks of each other, after the deaths of 21 people.