Buddhist mythology operates within the Buddhist belief system. It is a relatively broad mythology, as it was adopted and influenced by several diverse cultures such as Gandhara (Peshawar, Pakistan) which was the capital of Bactria. Later on, it also came to incorporate aspects from countries such as China and Japan. As such, it includes many aspects taken from other mythologies of those cultures. Saraswati is a Hindu Deva from Gandhara and the kami are considered to be local, Japanese bodhisattvas by many Japanese Buddhists). (Wikipedia)
Buddhas of the past,present and future
Image source: en.wikipedia.org
Arhat (Luohan) and Bodhisattva
Image source: Arhat (Luohan) and Bodhisattva