Jules Croiset is a Dutch actor with a extensive career in theatre, film, and television who has also performed regularly as a voice actor for Dutch-language dubs of animated films and series. Born on October 9, 1937, in Deventer, Netherlands, he comes from a prominent acting family and made his professional stage debut in 1955. His work as a voice actor is a significant facet of his long career, contributing to the Dutch versions of numerous international productions.

Croiset provided voices for a wide array of classic animated characters in Dutch-dubbed versions of Disney films. These roles include Shere Khan in The Jungle Book and its sequel The Jungle Book 2, Doc in Snow White and the Seven Dwarfs, and both Prince John and King Richard in Robin Hood. He also voiced the character General Mandible in the Dutch version of the DreamWorks film Antz.

Beyond feature films, Croiset contributed his voice to several animated television series. He was the Dutch voice for the title character in the Dutch-British children's series Doctor Snuggles. He also voiced Joe Dalton in the Dutch version of the Lucky Luke animated series. His work in dubbing also extended to anime; he provided the voices for the characters Slinger and De Kok (Slinger and the Cook) in the Dutch version of the Japanese animated film Animal Treasure Island (De vrolijke piraten van Schateiland).

In addition to film and television, Croiset's voice is associated with a notable Dutch theme park attraction. He voiced the character Hugo van den Loonsche Duynen, the central figure in the Villa Volta attraction at the Efteling, a role he reprised for a special Winter Efteling presentation in 2011. His contributions to Dutch dubbing also include work on animated shorts like Donald in Rekenwonderland.

While his voice acting is a notable part of his portfolio, Jules Croiset is primarily renowned as a distinguished stage actor. He received the prestigious Louis d'Or award in 1979 for his title role in a production of Anton Chekhov's Platonov. His career also encompasses numerous roles in Dutch films and television series, such as the lead in the 1974 comedy Help, de dokter verzuipt! and appearances in the television series Medisch Centrum West and Goede tijden, slechte tijden.