Black Knight (Scooby-Doo)

The Black Knight appeared in the pilot episode of Scooby-Doo, Where Are You!, which was called ''What a Night for a Knight. ''He was clad in suit of black armour. and was voiced by Bob Papenbrook

In this episode, the series "pilot", Shaggy and Scooby find a mysterious black knight that the kids return to the museum. When there, they discover the archeologist delivering the knight is missing, and the knight has come to life. The man behind the Black Knight Armor was Jeremiah Wickles AKA Old Man Wickles.

Scooby-Doo 2: Monsters Unleashed
In Scooby-Doo 2: Monsters Unleashed, a haunted suit of armor and Mystery Inc.'s first and most memorable case. He is the second monster to be brought to life, (the first one being, the Pterodactyl Ghost) along with the 10,000 Volt Ghost and sneaks into Old Man Wickles' manor to await Mystery Inc.'s arrival.

He battles Daphne in the manor, using his ghostly sword. He later appears to battle Fred in a joust, riding a horse while Fred uses a motorbike. The Black Knight and 10,000 Volt Ghost then corner Fred and Daphne. Daphne uses some jumper cables to absorb all of the 10,000 Volt Ghost's electricity into the Black Knight, causing him to explode and be defeated, his charred head rolls across the ground and exclaims his mistake with "Oh, crap!".

Trivia

 * It's been a real mystery if the Black Knight Ghost really was Mystery Inc's very first mystery. In Scooby-Doo 2; Monsters Unleashed, Fred declared that the Black Knight Ghost was their very first case. However, in the TV show A Pup Named; Scooby-Doo, thier first monster that they unmasked was the Green Goo Monster. Also in Scooby-Doo! The Mystery Begins; their first mystery was, a Specter which was their principal in diguise. Not to mention in Scooby-Doo; Where Are You?, in the episode; What a Night For a Knight, Fred say; "It look like we have another mystery on our hands." It possible that; when Fred sayed that the Black Knight Ghost was their first case as Mystery Inc.