Carl Gustav Jung was influenced by who?

Carl Jung's biggest influence was Sigmund Freud. Although they were not of the same religion or culture, they bonded quickly. Freud proclaimed Jung his "successor" and fully intended for him to further his theories. After a difference in theory, Jung being much more positive and Freud being much more focused on sex and agression, the pair split up.

Jung was also influenced by some philosophers, especially Nietzsche and Kant.