Link was voiced by sexualburgerking, the main animator of the series who also worked on the sound design and textures.
Zelda was voiced by orquiox, who did the art direction for the series along with work on textures and the clay models seen in Part 3.
Majora was voiced by Joe_Cracker, the creator of the original script, in Part 1 and Cellius_18, the composer of the series who also did texture and sound design work, in Part 3. Eian and Tingle were also voiced by Joe_Cracker in Part 2.
Development Hell: The planned fourth short. Originally announced in 2008, the only content that has been released for it is a trailer, which features Zelda laying apparently dead as Link tries fighting Ganon in a volcano only to be presumably dispatched by him as the Master Sword is then seen falling to the ground and shattering, what appears to be concept art for the trailer showing Link staring at Ganon while hanging onto a seemingly lifeless Zelda's body (which even seems to be bleeding) in the first installment of the Bitcrusher miniseries, and a storyboard seen on the defunct Dancing Triforce website◊ showing Ganon reluctantly attending Link and Zelda's wedding that happened at the end of the original script. Though, this is Lampshaded on the creators' YouTube page and website. The trailer's tagline is "Coming Eventually," and its official release date is July 26, 2035.
Referenced by...: In Henry Stickmin: Completing the Mission, one fail involves a button with a symbol notably resembling Majora's Mask being pressed in the CCC mobile unit, which summons the moon from The Legend of Zelda: Majora's Mask and makes it crash into the Earth. The flavor text for this failnote "You should have thought about what I am willing to do in order to get the job done." is directly lifted from Part 3.
Throw It In!: Link's eye tic, Ganon's robe falling off when he throws Majora's Mask, and numerous other animation errors were kept in for laughs.
One development screenshot for The Light of Courage Part 3 (specifically "squirrelganon") suggests that the animators were considering giving Ganon a covering of fur. Why this was decided against is unknown.
The same archive of screenshots and other development images also shows seven different unused robe designs for Ganon.
Part 3's leica reel shows that Eian's scene during Link's freakout may have been originally different from the final video's scene, as it appears he would have been somehow decapitated and other people would have been seen running away.
Originally, Ganon's wrist would have spurted blood after his hand was cut off by the Triforce of Power's beam, but this detail was left out of the final video due to it being deemed too violent for the mostly young audience. This concept can still be seen in Part 3's leica reel.
Other trivia
The alternate texture for Zelda's model seen in Parts 2 and 3 was originally made by Cellius_18.
The text seen on the script for TLOC seen in Part 3 actually comes from writings from Joe_Cracker. In its first appearance, the text is derived from a blog post from Joe_Cracker detailing one of this planned projects. When we next see it while Zelda is using it as a torch in the dungeon sequence, the text becomes an excerpt of an angry rant that Joe_Cracker sent to Dancing Triforce.
The clay models and diorama utilized in Part 3's stop-motion dungeon sequence were made by Dancing Triforce member orquiox as a gift to sexualburgerking. The sequence was also shot with a digital camera by SBK.
The scene where Zelda pulls out the binoculars to listen in on Ganon and Majora's Mask's conversation was animated by Infinity_Man, who is sexualburgerking's nephew.
Some of the writing seen on the Triforce of Wisdom's chalkboard during Link's freakout are actual calculations that sexualburgerking made while trying to time the walk cycles of the characters in the beginning to the music.
The sequence at the end of Part 3 where Link repeatedly shouts "Ha!" was made as a joke by Cellius, who combined several parts of sexualburgerking's takes on the "Ha, goodbye Ganon." line that Link said before disintegrating Ganon with the newly-formed Master Sword in the original script.
