{{Infobox/Yu-Gi-Oh!/Charactercharacter | image name headers = Prin.MacKenzie.jpgyes | image size = 200pxTragkenzie.jpg | image caption ja_name = Mr.マッケンジー | japanese name = レジー・マッケンジー | romaji name romaji_name = Purincipura Misutā Makkenjī | english name en_name = Principal MacKenzie | manga debut manga_debut = {{chapter|Yu-Gi-Oh! GX|21|ref}} | appears in appears_in_manga = ''[[Yu-Gi-Oh! GX (manga)|Yu-Gi-Oh! GX]]'' | affiliation school = [[American Duel Academy]]| occupation = Principal | gender = maleMale | relatives =

| manga deck manga_deck =Egyptian Mythology

'''Principal MacKenzie''' or '''Mr. MacKenzie''' (Mr.マッケンジー, ''Misutā Makkenjī'') is the head of the American Duel Academy, [[Reggie MacKenzie|Reggie's]] father, [[David Rabb|David's]] adopted father, and the main host of [[Tragoedia (character)|Tragoedia]]. He sends the [[Overseas Champions]] to the Japanese [[Duel Academy]].

[[File:PrincipalMacKenziepos.jpg|150px|left|thumb|MacKenzie is possessed by [[Tragoedia (character)|Tragoedia]] as his daughter, [[Reggie MacKenzie|Reggie]] watches on.]]MacKenzie is the main host of [[Tragoedia (character)|Tragoedia]]. Through MacKenzie, Tragoedia obtained the "[[Legendary PlanetsPlanet]]" s from [[Mr. Phoenix]] and began his quest to obtain the spirit cards. Aware of the dark presence within her father, [[Reggie MacKenzie|Reggie]] begins working against him to free herself of him, while appearing to help him in his quest at the same time. MacKenzie is also the adoptive father of [[David Rabb]], though whether or not he adopted him before or after his possession by Tragoedia is not specified. In MacKenzie tells Aster to meet him in a warehouse, where Aster finds the latest chapter unconscious bodies of [[Atticus Rhodes (manga)|Atticus]], Reggie, [[Jesse Anderson (manga)|Jesse]], [[Axel Brodie (manga)|Axel]] and [[Jim Crocodile Cook (manga)|Jim]], their energy drained by Tragoedia. Aster confronts him, but MacKenzie Summons his ace monster, "[[The Supremacy Sun(manga)|The Supremacy Sun]]". Shortly after Aster's confrontation, Aster is defeated. Just as this occurs [[Chazz Princeton (manga)|Chazz Princeton]] and [[Jaden Yuki (manga)|Jaden Yuki]] arrive at the location and prepare to Duel him 2-on-1. MacKenzie then gives Jaden his "[[Elemental Hero Terra Firma (manga)|Elemental Hero Terra Firma]]"and "[[Winged Kuriboh (manga)|Winged Kuriboh]]" cards back saying that he has used them for the purpose that he has wanted them for. During the Duel, the two fight cooperatively, but fail in stopping MacKenzie from Summoning his ace monster, who begins to plague them throughout the Duel. After Tragoedia's defeat, MacKenzie is freed from his control at last, and returns to the American Duel Academy.

{{Main| style=Tragoedia (character)#Deck}}MacKenzie's Deck while possessed by [[Tragoedia (character)|Tragoedia]] is centered around his [[signature card|ace card]] "[[The Supremacy Sun (manga)|The Supremacy Sun]]"floatwhilst supporting it with cards based around [[wikipedia:right;" borderAncient Egyptian religion|Egyptian mythology]]. ==Duels="1" width="30%"! colspan="3" style{| class="background: #00FF00; textwikitable card-align: center;list" | Record

! scope="col" | Opponent(s) |! scope="col" | Chapter(s) |! scope="col" | Outcome(s)

| [[Aster Phoenix (manga)|Aster Phoenix]] || [[Yu-Gi-Oh! GX - Chapter 060|60]]-[[Yu-Gi-Oh! GX - Chapter 061|61]] || Win

| [[Jaden Yuki (manga)|Jaden Yuki]] and [[Chazz Princeton (manga)|Chazz Princeton]] || [[Yu-Gi-Oh! GX - Chapter 061|61]]-??? [[Yu-Gi-Oh! GX - Chapter 064|64]] || TBDLose

{{Decklist|Manga Deck|monsters =<u>Effect Monsters</u>* [[Ghost of a Thousand Eyes]]* [[The Boundless Dead]]* [[The Supremacy Sun]]* [[ThreeYu-Eyed Ghost]]|spells =* [[Lost Property of the Dead]]* [[Prediction]]* [[The World of True Darkness]]|traps =* [[Beacon from Duat]]* [[Descendants of the Dead]]* [[Ruined Future]]}} {{Characters/Gi-Oh! GX/Manga}} {{DEFAULTSORT:MacKenzie, Principalmanga characters}}

[[Category:Yu-Gi-Oh! GX manga characters]]