Leaders

Leaders of tribes are Mixels that lead their tribe, hence the name. They are usually the most mature or important member of the tribe.

Mixels mistaken as Leaders

 * Seismo - Extremely often mistaken as the leader of the Cragsters. (Reason was being seen as one of the first shown Mixels, and most of his actions.)
 * Volectro - Sometimes mistaken as the leader of the Electroids. (Reason was being seen as one of the first shown Mixels.)
 * Slumbo - Sometimes mistaken as the leader of the 2014 Frosticons. (Reason was because he was seen on the Mixels logo and was first out of the Frosticons in production code.)
 * Gobba - Almost always mistaken as the leader of the Fang Gang. (Reason was taking Jawg's place in Mixed Up Special and being seen on the color wheel on Mixels.com.)
 * Chomly - Very rarely mistaken as the leader of the Fang Gang. (Reason was because he was first out of the Fang Gang in production code.)
 * Torts - Rarely mistaken as the leader of the 2014 Glorp Corp. (Reason was producing the most slime out of his tribe.)
 * Footi - Extremely often mistaken as the leader of the Spikels. (Reason was being seen on the color wheel on Mixels.com.)
 * Mesmo - Rarely mistaken as the leader of the Wiztastics. (Reason was because of being the first out of the Wiztastics in production code.)
 * Wizwuz - Very rarely mistaken as the leader of the Wiztastics. (Reason was based on untrue rumor of having both a star pattern and a moon pattern on his body.)
 * Rokit - Seems to take a leading position in Mixel Moon Madness; also was one of the voices of the Max.
 * Nurp-Naut - Voiced the Max of his tribe in Mixel Moon Madness; represented his tribe on the title card for the separate shorts.
 * Burnard - Was thought by some to be the 2015 Infernite leader before confirmation by LEGO that the additional members have the same leaders as the original members.
 * Flamzer - Seems to take a leading role in Mixel Moon Madness and also voices the Max.
 * Boogly - Was rumored to be the leader of the Glowkies before the release of Mixel Moon Madness.
 * Tungster - Was rumored to be the leader of the Lixers before A Quest for the Lost Mixamajig, due to being on the Series 5 Mixels Rush icon, but it was confirmed by LEGO that he, and the other Lixers, are primitive.
 * Krog- Seems to take a leading role in A Quest For The Lost Mixamajig.
 * Gurggle- Seems to take a leading role in A Quest For The Lost Mixamajig.
 * Dribbal- It was stated that Gurggle follows whatever Dribbal says. He also appears on the Series 6 Mixels Rush icon.
 * Mixadel- Referred to as a "tyrant" in his LEGO description.

Epic Comedy Adventure
Thanks to the actions of Zaptor, the leaders of the Series 1 and 2 tribes (save for Jawg, Gobba went in his place) ended up going on a hamlogna sandwich run. This ended up saving them from being under the effects of the Mega Nixel Mixel Nixer, but also forced them to head to Mixel Mountain to find the giant Rainbow Cubit to return everyone back to normal. Just when the party has just started, the Series 3 leaders arrive.

Every Knight Has Its Day
Camillot is next in line to the Medivals' throne, so the King sends him to school to learn to "Mix with the common Mixels."

Trivia

 * The leaders are most commonly the controllers and voices of the Maxes of their respective tribes, with a few exceptions based on abilities.
 * So far, Magnifo is the tallest among the leaders, while Scorpi is the shortest.
 * The Lixers are the only tribe without a leader due to its members being primitive.
 * The second wave of tribes follow the leader of the original wave, despite being cousins and not members of the same group.
 * Flain somewhat acts as an overall leader to all of the other tribes.
 * King Nixel and Major Nixel act as leaders for the Nixels.
 * Gox is the only confirmed Series 5 leader.
 * As shown through the Medivals, leadership can vary and can be passed on to other members of a tribe.
 * Leadership can also vary, as shown through the MCPD. Kuffs is the leader of the tribe while the Sergeant is the de facto leader of the tribe, being Kuffs' branch leader.
 * Although he is not the leader of his tribe, the Principal could be seen as a leader to the Mixels in the school.
 * All of the Series 7 leaders were revealed at San Diego Comic-Con International.