One-line: sage who tells Janamejaya most of the Devi Bhagavatam and keeps pulling family history, theology, and ritual into one story.
First seen / best remembered: First active in Book 1, where he frames the text and longs for Suka; full origin and family-line owner is Book 2 (Book 2 retelling; atlas: ).
Who they are: Vyasa is the great compiler-sage: the person the text credits with arranging the Purana and the person inside the story who teaches King Janamejaya. He is also a character with a family, grief, and unfinished business. Book 2 tells his birth from Satyavati and Parashara; Book 1 shows his longing for a son; the later books let him become the patient teacher who answers Janamejaya’s grief.
What they do that matters:
- Is born to Satyavati and Parashara on an island, which explains the name Dvaipayana.
- Fathers Dhritarashtra, Pandu, and Vidura to keep the Kuru line alive.
- Tells Janamejaya how the Goddess can rescue Parikshit when revenge cannot.
Other names: Krishna Dvaipayana, Vedavyasa, Veda Vyasa
Family / lineage (when relevant): Son of Satyavati and Parashara; father of Suka and of the Kuru heirs through niyoga.