Complex Potions professor, double agent with hidden loyalty to Dumbledore.
The film presents Snape's alleged past association with Voldemort as a disputed matter.
Igor Karkaroff names Severus Snape among those who served Voldemort, while the headmaster vouches for Snape.
Karkaroff publicly links Snape to Voldemort's former circle.
During questioning, Karkaroff names Severus Snape when asked to identify people who served Voldemort.
Their tense school relationship is complicated by Snape's protective intervention.
The Pensieve scene identifies Snape as a Hogwarts professor, and Snape later helps subdue the impostor who threatens Harry.
They cooperate as Hogwarts staff members during the final confrontation.
Snape and McGonagall jointly help subdue the impostor in the Hogwarts office.
Explore the full interactive character relationship map of Harry Potter and the Goblet of Fire
Related entry on Wikidata (Q176772), public domain (CC0).