Lord Voldemort

Voldemort is the son of Tom Riddle, a Muggle who abandoned his witch mother before Voldemort was born. Voldemort later killed his father and uses his remains in the rebirth ritual.

Crouch Jr. is accused of remaining faithful to Voldemort and attempting to restore him to power; his companions proclaim that Voldemort will return and reward them.

Pettigrew serves Voldemort out of fear and self-preservation, helps restore his body, and is rewarded with a magically created silver hand. Voldemort nevertheless calls him traitorous and demands renewed loyalty.

Avery returns to Voldemort and begs forgiveness for his long absence. Voldemort rejects the plea and tortures him for his perceived disloyalty.

Lucius is a Death Eater who presents a respectable public face but remains aligned with Voldemort. Voldemort reprimands him for failing to seek him out and for fleeing when the Dark Mark appeared.

Nagini is Voldemort's enormous snake and close companion. She supplies him with venom, which Pettigrew milks for his care, and alerts him to Frank Bryce's presence.

Macnair is a Death Eater who welcomes Voldemort’s return and is promised future victims for his service.

The woman among the defendants declares that she and her companions remained faithful to Voldemort and expects him to return and reward them.

Harry knows Voldemort has wanted him dead since infancy. Harry suspects that the person who engineered his Tournament entry may be trying to put him in mortal danger, while his dream suggests Voldemort is plotting with Wormtail.

Voldemort tortured Bertha for information about the wizarding world and his former followers, then killed her to conceal what she knew and use the information in his plan.

Frank discovers Voldemort's murder plans and confronts him, then is killed with the Killing Curse.

Karkaroff says he deeply regrets having been one of Voldemort’s supporters and offers names of other Death Eaters to the Ministry in exchange for consideration of his case.