Enemies
Weapons
Side Characters
Winchesters & Co
Episodes
100

The name of the demon that killed Mary Winchester and Jessica Moore.

Who is Azazel?

100

The gun that Dean uses to kill the Yellow-Eyed Demon. 

What is the Colt?

100

The prophet in Advanced Placement.

Who is Kevin Tran?

100

Sam and Dean's pseudo-father.

Who is Bobby?

100

Sam and Dean's first case hunting a shapeshifter.

What is 'Skin'?

200

The demon who tricked Sam into freeing Lucifer.

Who is Ruby?

200

Each angel has their own one of these.

What is an Angel Blade?

200
The demon-blood kid that could make people do whatever he said.

Who is Andy?

200

The mother/daughter duo that owned The Roadhouse.

Who are Ellen and Jo Harvelle?

200

The episode where Sam and Dean have to pretend to be the actors Jared and Jensen.

What is 'The French Mistake'?

300

Monsters from Purgatory that bleed black goo.

What are Leviathans?

300

The knife with special engravings that can kill demons.

What is Ruby's knife/the Kurdish knife?

300

The Queen of Moondor. 

Who is Charlie Bradbury?

300
Sam and Dean's maternal grandfather, also a hunter.

Who is Samuel Campbell?

300

Castiel's debut episode.

What is 'Lazarus Rising'?

400

The original Knight of Hell.

Who is Cain?

400

The only weapon that can kill a Knight of Hell.

What is the First Blade?

400

The angel that cut out her grace and was reborn as a human.

Who is Anna?

400

Their home base after Bobby's house was burnt down.

What is the Men of Letters Bunker?

400

The episode where Adam as Michael and Sam as Lucifer get sent back to The Cage.

What is 'Swan Song'?

500

The mother of all monsters.

Who is Eve?

500

The gun that can kill God, but will also kill whoever pulls the trigger.

What is the Equalizer?
500

The second-choice vessel of Michael.

Who is Adam Milligan?
500

The Winchester who kept the key to the Men of Letters Bunker.

Who is Henry Winchester?

500

The episode where Sam and Dean are transported into the TV.

What is 'Changing Channels'?