He took in Kendra for training at a very young age. Zambuto was very strict, and did not allow Kendra to attend school or have any pastimes except for studying demon lore. She was also not allowed to speak to boys. Zambuto heavily relied upon the Slayer Handbook.
When Kendra was activated as a slayer, he sent her to Sunnydale to stop the rise of Drusilla, who at the time was going to be restored to health by Spike.
His fate after the death of Kendra was unknown.
- "What's My Line, Part Two" (Only mentioned)
- "Becoming, Part One" (Only mentioned)
- The Book of Fours (Non-canon)