General
- Shaco is voiced by Adam Harrington.
- Pre-rework
Karthus, 
Kassadin, 
Mordekaiser and pre-fourth-rework 
Ryze are also voiced by the same voice actor.
- Pre-rework
- Shaco, LeBlanc, and Wukong are the only champions with more than one texture per skin (one for themselves and one for the clone spawned by Hallucinate, Mirror Image, or Decoy).
- Shaco's dance references The Worm, a breakdance move.
- A side-by-side comparison can be seen here.
- During development he was simply called Jester.
- Shaco might be referencing the Harlequin Crest from Diablo.
- It's possible that many aspects of Shaco's champion design, such as his appearance, his laugh and his "manic killer clown" persona were inspired by Kefka Palazzo from Final Fantasy VI.
- The name Shaco is an anagram for the word 'chaos' (mentioned in the Journal of Justice - Issue 13: 10 Questions with Shaco), befitting his penchant for it.
- There was a rework concept that turned Shaco into a projectile but hitting a Wind Wall in this form would remove him from the game.[1]
- Shaco's eye color is inconsistent. His eye color is light blue on his in-game model, on a player's background, in the Shop, on his splash art in Champion Select and in the overview section of the client but purple everywhere else.
Quotes
- "Why so serious?" references the Joker (The Dark Knight) from DC Comics.
- A side-by-side comparison can be seen here.
- "For my next trick, I'll make you disappear!" resembles "For my next trick, I'll make their life bar disappear" and references stage magic and/or Kefka from Final Fantasy VI.
Skins
- Several of his Jack-in-the-Boxes and the Hallucination of him can be seen in the background.
- He was inspired by and references the Joker from DC Comics.
- This skin shares the Storybook theme with:
- He references the Hatter from Alice's Adventures in Wonderland by Lewis Carroll.
- This skin shares the Snowdown Showdown theme with:
- He was released in celebration of Snowdown Showdown 2010 along with:
- He references a Nutcracker doll, also known as a Christmas Nutcracker.
- In the old splash art, he poses among other the Nutcracker dolls after he seemingly murdered the one he is in place in, as noted by the statue base and blood puddle behind him.
- In the old
- This skin shares the Legacy theme with:
- He and his Champion Spotlight were released on the same day.
- This skin shares the Legacy theme with:
- He references Karl Ruprecht Kroenen from Hellboy.
- This skin shares the Wonders of the World theme with:
- He was released in celebration of the first anniversary of the Korean Server's launch.
- He is called 'Joyful Mask Shaco' in the Korean localization.
- He is the third light-themed skin for a dark-themed champion (the others being Justicar Syndra and Arclight Varus).
- His dance references Talchum, specifically based on the performance done in this video.
- A side-by-side comparison can be seen here.
- This skin shares the Highstakes theme with:
- He references the eponymous playing card.
- Dark Star Shaco Chromas: Catseye, Emerald, Obsidian, Pearl, Rose Quartz, Ruby
Chromas:- This skin shares the Dark Star theme with:
- Arcanist Shaco Chromas: Aquamarine, Emerald, Rainbow, Ruby, Sapphire, Tanzanite, Turquoise
- This skin shares the Arcanists theme with:
