Answer: Order of the Phoenix
Albus Dumbledore founded the Order of the Phoenix in response to the threat posed by Lord Voldemort and his followers, the Death Eaters.

Answer: Lucius Malfoy
Scorpius's grandfather was the pure-blood wizard Lucius Malfoy.

Answer: Lee Jordan
Lee Jordan was a the commentator who called many Quidditch matches during the 1990's.

Answer: Molly Weasley
Molly Weasley is not only Harry's mother-in-law but also an accomplished witch.

Answer: Fantastic Beasts
The Harry Potter prequel is called "Fantastic Beasts and Where to Find Them".

Answer: Astoria Greengrass
Astoria Malfoy's maternal name is Astoria Greengrass.

Answer: Arthur and Molly
Ron Weasley's parents are Arthur and Molly, both pure-bloods.

Answer: A Squib
A person who has wizardkind for at least one parent yet lacks any magical abilities is called a squib.

Answer: Serpent of Slytherin
Harry mortally wounded the Serpent of Slytherin in the Chamber of Secrets.

Answer: 8
In total there are eight Harry Potter movies, excluding the "Fantastic Beasts" prequels.