Duke Fleed
main character
TV
5.6
My TrackerPLANNING
Episode: 0 / 13
My Score:
Anime DetailsFINISHED
Estimated watch time
5h 12m
⚡ 3 days at 5 eps/day
Tags & Tropes
Super Robot96%Primarily Adult Cast79%Tragedy79%Space73%Aliens73%Male Protagonist73%CGI66%Amnesia60%Aviation20%Heterosexual20%
overview details
Synopsis & Story
Following a devastating attack by Vega's forces on planet Fleed, Duke Fleed, and Grendizer escaped to Earth. When he got there, Dr. Amon, the head of the Space Research Center, adopted him and gave him the name Daisuke. While they were working side by side in the center on a quest to find out what strange objects appeared in the city's sky! They were surprised by an attack that jolted Daisuke's memory.
Trailer
Watch on YouTubeWhere to Watch Officially
A streaming link is not listed for this title yet.
Featured Cast & Voice Actors
Franchise Universe & Related Entries
Aniphoria guide
Grendizer U: should you watch it?
At a glance
Grendizer U has been poorly received, with an average AniList score of 56/100 — 22% of 938 ratings are 8/10 or higher.
Of the 2.3K AniList users who started it, 21.7% dropped it, so it is frequently dropped; 1.1K have finished it.
At about 5 h 12 min in total, it is a short commitment — a weekend binge.
Best for viewers who enjoy Action, Adventure, Mecha — especially super robot, primarily adult cast, tragedy, space.
Where it fits in the series
- Optional extras: UFO Robo Grendizer
Episodes
13 episodes are listed.
Main cast & creators
- Original creator
- Gou Nagai
- Director
- Mitsuo Fukuda
- Series composition
- Ichirou Ookouchi
- Character design
- Yoshiyuki Sadamoto
- Music
- Kouhei Tanaka
Grendizer U FAQ
- How many episodes does Grendizer U have?
- Grendizer U has 13 episodes of about 24 minutes each, roughly 5 h 12 min in total.
- How long does it take to watch Grendizer U?
- About 5 h 12 min back to back. At two episodes a day it takes 7 days; at one hour a day, about 6 days.
- Is Grendizer U finished?
- Yes. Grendizer U has finished airing — the final episode aired September 28, 2024.
- Is there a season 2 of Grendizer U?
- No sequel is listed for Grendizer U as of October 2026. You can continue the story in the original manga.
- Is Grendizer U based on a manga?
- Yes. Grendizer U adapts the manga by Gou Nagai.
- Who animated Grendizer U?
- Grendizer U was animated by Gaina and directed by Mitsuo Fukuda .