Name:  Ookido Shigeru (Japanese), Gary Oak (American), Regis (French)

Voice Actors:  Kobayashi Yuko (Japanese), Matthew Mitler (American)

Name Meaning:  Shigeru is named after Miyamoto Shigeru, Satoshi Tajiri's friend at Nintendo and creator of Super Mario Bros, The Legend of Zelda, and basically all of Nintendo's other big franchises.

Age:  10

Known Relatives:  Ookido-Hakase-grandfather, Shigeru no Oneesan ("Shigeru's sister"--May in the American version)-sister.  Though his parents are never mentioned in the anime, we are told in the manga Pokemon Zensho that Shigeru's parents died in a car accident when he was little.

Hometown:  Masara Town (Pallet Town)

Aspirations: To become a Pokemon Master To become an expert on pokemon, like his grandfather

Video Game Appearances:  Pokemon Red (Game Boy), Pokemon Green (Game Boy), Pokemon Blue (Game Boy), Pokemon Yellow (Game Boy),  Pokemon Gold (Game Boy Color), Pokemon Silver (Game Boy Color), Pokemon Puzzle League (Nintendo 64)

Pokemon Owned (Red/Green/Blue):
If your starter pokemon's Hitokage:
Pijotto/LV. 61, Fuudin/LV. 59, Saidon/LV. 61, Windii/LV. 61, 
Nasshii/LV. 63, Kamex/LV. 65

If your starter pokemon's Zenigame:

Pijotto/LV. 61, Fuudin/LV. 59, Saidon/LV. 61, Gyarados/LV. 61, 
Windii/LV. 63, Fushigibana/LV. 65

If your starter pokemon's Fushigidane:

Pijotto/LV. 61, Fuudin/LV. 59, Saidon/LV. 61, Nasshii/LV. 61, 
Gyarados/LV. 63, Lizardon/LV. 65

Pokemon Owned (Yellow):
Ivui

If you lose his first challenge, it evolves into Showers.  Then the rest of the team consists of:
Sandpan/LV. 61, Fuudin/LV. 59, Nasshii/LV. 61, Kyuukon/LV. 61, 
Reacoil/LV. 63,

If you win his first two challenges, it evolves into Thunders.  Then the rest of the team consists of:
Sandpan/LV. 61, Fuudin/LV. 59, Nasshii/LV. 61, Parushien/LV. 61, 
Kyuukon/LV. 63, 

If you win his first challenge but lose his second, it evolves into Booster.  Then the rest of the team consists of:
Sandpan/LV. 61, Fuudin/LV. 59, Nasshii/LV. 61, Reacoil/LV. 61,
Parushien/LV. 63

Pokemon Owned (Gold/Silver):
Pijotto/LV. 56, Nasshii/LV. 58, Saidon/LV. 56, Fuudin/LV. 54, 
Gyarados/LV. 58, Windii/LV. 58

Pokemon Owned (Pokemon Stadium 2):
Nasshii/LV. 50, Yadoran/LV. 50, Kyuukon/LV. 50, Pixy/LV. 50, 
Elebuu/LV. 50, Kairos/LV. 50

Manga appearances:  Pokemon Dengeki Pikachu, Pokemon Zensho, Pokemon Comic Strip

Pokemon Owned ("Pokemon Zensho" Manga)
Fushigibana, Zenigame---Kameel---Kamex, 
Pijotto

First anime episode:  Episode 1, "Pokemon Kimi ni Kimeta!" ("Pokemon I Choose You!").  Shigeru decides to quit his journey as an aspiring Pokemon Master, so Episode 275, "Good Bye...And, Setting Off!" is presumably his last episode.

Defining anime episodes:  "Pokemon I Choose You!" ("Pokemon I Choose You!"), "Rival Showdown!  Satoshi VS. Shigeru!!" ("The Rivalry Revival")

Pokemon Owned (Anime):
Zenigame---Kameel---Kamex, Nidoqueen, 
Nidoking, Windii, Goronya, Dodo, 
Krab, Buubaa, Ivui, Ho-Ho, ---Blackii, 
Hassamu, Eaamudo, 
As well as about 200+ pokemon that we never see.

Information:  Shigeru has been Satoshi's rival since the two of them were little.  The grandson of the world-renowned pokemon expert, Ookido-Hakase, Shigeru's had an advantage from the very beginning.  I'm assuming that he has the same birthdate as Satoshi since they both got their starter pokemon on the same day.  Plus, it also fits that both Shigeru and Satoshi would start their journey as soon as they can, the day of their tenth birthday.  Shigeru won't tell Satoshi who his starter pokemon is, and keeps the "I'm too good to talk to you" attitude through most of the series.  He does lighten up toward the end of the Jouto League, showing that he has matured a bit during his journeys.

Surrounded by a squad of cheerleaders whom are cheering JUST for him, it really isn't hard to see why he's so arrogant.  He's always a step or ten ahead of Satoshi, and enjoys rubbing his success in his rival's face.  As you can see by his list of pokemon, he has gathered a lot of them over the years, yet he hasn't seen as many as Satoshi.  That means that he catches several breeds of the same pokemon.  He rotates his pokemon quite frequently, enabling them to gain experience evenly.  Because of this, he doesn't have the strong bond among his pokemon as Satoshi, whose team remains the same except for the occasional parting of ways. 

Shigeru may be a better overall trainer than Satoshi, but that doesn't help him win.  Sure he has ten gym leader badges by the time he enters the Sekiei League, but he places lower than Satoshi in the tournament. 

Shigeru doesn't show up too much (possibly to train) until the Jouto League, once helping Satoshi-tachi get through a forest of Ho-Ho and another time using his Blackii to help out at a power plant.  He does make it to the Jouto League Finals, where he does well until he faces off against Satoshi.  He is beaten by his rival, but instead of being bitter he declares that his rivalry with Satoshi is over.  The two trainers become friends, and Shigeru cheers Satoshi on for the duration of the league.

Shigeru decides after the Jouto League to quit his dream of being a Pokemon Master and decides to research pokemon, like his grandfather.  Shigeru is currently somewhere in the Kanto region, researching pokemon.

Links to Fan Pages: 

Perfection has a lot of info, including Shigeru's bio, family ties, pokemon, lots of pictures, games for you to play, desktop goodies, and a lot more! Broken Link

Thanks to:  MewHeart for the icons, and Perfection (and Booster 136) for the Pokemon information.