Ginga Yumeboshi (夢星銀河 Yumeboshi Ginga) is the human host of Ultraman Nice.
Ginga Yumeboshi is the vice-captain of the defense team GOKAZOKU, who can transform into the hero Ultraman Nice whenever the evil Alien Zagon or his minions attack.
Nice Dreamer: Ginga uses the Nice Dreamer to transform into Ultraman Nice. The Dreamer contains chocolates that allow the user to transform when eaten.
- Ginga's favorite Ultraman is Ultraman Tiga. As Ultraman Nice, some of his fighting skills were inspired from the aforementioned Ultraman himself.
- Ginga is a Mukoyōshi, meaning that upon his marriage, he took his wife's family name as his own.
- His first name "Ginga" means "Galaxy" in Japanese.