Wataru Hoshinoumi
- Wataru Hoshinoumi is a human from the Comic Bun Bun Henkei! Henkei! Transformers manga portion of the Generation 1 continuity family.

Wataru Hoshinoumi (星ノ海 ワタル Hoshinoumi Wataru) wins the "craziest hair ever" contest. He's able to eat his lunch in about a minute (without choking—yet), and doesn't bother to look both ways when running out into the street. (Cross-traffic? What cross-traffic?)
A 5th-grader living in the Japanese town of Hoshinochō, Wataru is a very excitable kid, aspiring to become a famous person one day (famous in what, exactly, we don't know), and he carries his own "X-File" (really a small notebook). Given that his hometown is nicknamed "Japan's Roswell" due to it being the crash and cover-up site of a very large meteorite years ago, his Mulder-like attitude regarding the conspiracy theories floating about Hoshinochō comes as no surprise.
Fiction
Henkei! Henkei! Bun Bun manga
Enter! The Transformers
The Emperor of Destruction Appears!
Kingdom of Giants
The Enemy from the Arctic
Wataru's Power
Optimus Prime's Secret
Time of Resurrection
Creation! The New Emperor of Destruction!!
The Threat of Galvatron
Revenge
A Nightmare, Once Again
To the Sea of Stars
Notes

- Wataru's last name, Hoshinoumi (星ノ海), literally translates to "sea of stars". With a name like that, the kid would almost have to grow up to be buddies with aliens.
- On promoting the Henkei! Henkei! manga, Naoto Tsushima had drawn up an unused early promo art featuring both Bumblebee and Wataru, the latter's hair being of only one color.[1] Wataru's earlier design was used in an ad for the October 2008 issue of Comic Bun Bun.
- Although Wataru is a young boy, he uses the rough "ore" オレ (俺) when identifying himself. In contrast, Osamu Kihara, a grown adult, uses the more boyish "boku" ボク (僕). "I" in Japanese can be pronounced in more than one way and the usage can sometimes identify the speaker's attitude and character - from the common "watashi" 私, to formal "watakushi", to the older "ware" (我) that various Decepticon leaders have used in the Japanese series/dubs (such as Victory Deathsaurus and Animated Megatron).


