John Ward or Jack Ward (c. 1553 – 1622), also known as Birdy, Sparrow or later as Yusuf Reis Chagour, was an English pirate who later became a Corsair for the Ottoman Empire operating out of Tunis during the early 17th century.

George Joseph Smith (11 January 1872 – 13 August 1915) was an English serial killer and bigamist who was convicted and subsequently hanged for the murders of three women in 1915. The case became known as the Brides in the Bath Murders.

Uzair Jan Baloch (Urdu: عزیر جان بلوچ, romanized: 'Uzair Jān Balōc, born 11 January 1970) is a Pakistani gangster, former crime lord. He was also the head of the outlawed Peoples' Aman Committee based in Lyari, Karachi, Sindh, Pakistan.

Péter Kovács (January 11, 1934 – December 1, 1968), known as The Martfű Monster, was a Hungarian rapist and serial killer known for his crimes around the southern settlements of Szolnok. The case surrounding his murder series is controversial, as an innocent man was initially accused of his crimes.

Charles "Carl" Panzram (June 28, 1891 – September 5, 1930) was an American rapist, serial killer, and habitual offender. In prison confessions and in his autobiography, Panzram confessed to having murdered twenty-one boys and men, only five of which could be corroborated.