Master Sensei

Master Sensei[3] is the head teacher of the Yamanouchi Ninja School. He has many different skills and he has mastered Levitation and Astral Projection. 
He has instructed many ninja students:
* Yori, who befriended Ron Stoppable.
* Hirotaka, who was attending Middleton High School for a week during the whole student exchange program.
* Fukushima,
 who betrayed the school and allied himself with Monkey Fist. He was 
defeated by Ron Stoppable, who managed to channel the Mystical Monkey 
Power he received from the ancient monkey idols for the first time.
* Ron Stoppable,
 who was the Middleton High School Student, who was sent to spend a week
 learning at the Yamanouchi Ninja School, which was arranged by Master 
Sensei. He pretty much has failed every class at the school, even though
 he is connected to both the school and the Lotus Blade by destiny, due 
to his Mystical Monkey Powers
* Rufus, who attended each class, along with Ron Stoppable, only he excelled at almost everything, unlike his owner, Ron.
Master Sensei also knew that both Monkey Fist
 and Ron Stoppable were exposed to Mystical Monkey Powers. He was also 
aware that Ron had some deep-rooted monkey issues, as well as Ron being 
the anointed prophesized Ultimate Monkey Master. That is probably the 
major reason why he arranged for the two schools to do the Exchange 
Program for a week. It was very important that he met Ron Stoppable, and
 to help prepare him some for his destiny of being the Ultimate Monkey 
Master. Like Yori, he really believes in Ron.
In the episode "Big Brother," Master Sensei secretly arranged for Mr. Stoppable and Mrs. Stoppable to adopt Hana Stoppable,
 who knew that she was the prophesized Mystical Weapon because he knew 
that it was imperative in both, Ron and Hana's Destinies that they be 
brother and sister. He chose to place Hana with the Stoppable Family 
when Monkey Fist was searching for the mystical keys concerning the 
Mystical Weapon, who was Hana Stoppable. He knew that Ron needed to 
prepare her for her upcoming battle against the Yono the Destroyer. He 
did not tell this to Ron, though. He waited until Ron and Kim Possible,
 both saw Baby Hana walking on the ceiling, and begin trying to find out
 about Hana's adoption agency, which of course led them back to Master 
Sensei and the Yamanouchi Ninja School. He broke this information to 
Ron, in much the same way as Ron's own parents break major news to him, 
"This is my way of telling you." Thankfully, Ron teaching Hana to turn 
the "page," and to dance to the Flippies helped her to win and defeat 
Monkey Fist and the Yono. In the battle against Yono the Destroyer, he 
was the second one turned into stone (Rufus was first, and Kim was third).
== Trivia ==
* His name, "Sensei", means "teacher", "mentor" or "master" in Japanese.
** Strictly speaking, "Master Sensei" is a title, and not normally a
 name, although with the naming convention of the world of KP, it is 
debatable which case this is.
** Also considering the Traditional Asian naming convention of surname 
first, first-name or status second, then his surname may be "Master", 
with "Sensei" his title.
** "Master Sensei", depending upon terminology usage and language, could be translated as "Master Master", or "Sensei Sensei".
* Sensei appears in only one episode without Yori, let alone a two-part episode: Graduation
== Behind the Scenes ==
=== Voiced By ===
Sensei was voiced by George Takei.
=== Episode Appearances ===
== Gallery ==
== References ==
Category:Characters
Category:Males