Palladium

Professor Palladium is a character from the Winx Club animated series.

Overview
Professor Palladium is an elf who is a professor at Alfea, the school for fairies in training. He teaches Potionology, technical charms, runs the simulator, and taught the girls how to listen to the voice of nature in Season 1 Episode 4.

Season 1
In the first season, Palladium can be seen as a very nervous teacher with less confidence compared to the other teachers. He takes the freshman class out on a field trip to Black Mud Swamp where he instructs them to find their way using only the voice of Nature to guide them. Palladium is also the only teacher we see running the Magic Reality Chamber.

Season 2
In the second season he appears to be much more confident and muscular, having evolved his form since he's an elf.

The evolution also caused him to be more strict with his students should they get out of line, case in point, when Amaryl was about to attack Stella, he stopped the spell and gave Amaryl detention for one week (4kids version,    in the Rai version, he threatened to expel her). He is also shown in various scenes with Professor Avalon, and when Avalon gets spit into his eyes by a plant, Palladium heals him. In the episode when the Codex was taken from Pixie Village, it was shown that he was being used by the fellow professor and was an accomplice in the robbery with no education of the matter.

Season 3
Palladium rarely shows up in Season 3 along with most of the other teachers. He is only shown in the background or in more unnoticeable roles.

Season 4
Palladium had only a brief appearance in the second episode of the fourth season. He was setting up an AV for Faragonda's explanation of the Wizards of the Black Circle.

Season 5
Palladium has only been seen in the simulation room helping the Winx on their quest for Sirenix and at the Red Fountain annual wind rider competition.

Trivia

 * Professor Palladium strangely looks like the Elves depicted in the books and the movie adaptations of The Lord of the Rings, both in his having pointed ears, his hairstyle and his facial appearance. It could be that he was inspired from them, or that he is in fact a tribute to The Lord of the Rings, which is considered both as one of the foundations and a masterpiece in fantasy.
 * He is not of the same kind of elves as those appearing in Pop Pixie.
 * Palladium is the name of a precious metal.
 * In the 4Kids version, Palladium was voiced by Timmy's voice actor, Sebastian Arcelus, but in the Nickelodeon version, he is voiced by Mitchel Whitfield.