Main character
Sigmaシグマ
- appearance
- 1
- appearance
- main roles
- 1
- main roles

Sigma at a glance
Sigma is a main character in Irregular Hunter X: The Day of Sigma. Sigma is voiced by Mugihito in Japanese and by Gerald Matthews in the English dub.
Also known as Commander Sigma.
Sigma: quick facts
- Role
- Main character
- Also known as
- Commander Sigma
- First appearance
- Irregular Hunter X: The Day of Sigma (2005)
- Japanese name
- シグマ
- Japanese voice
Mugihito- English voice
Gerald Matthews
Full Irregular Hunter X: The Day of Sigma cast👤 Most popular characters
Who is Sigma?
Sigma, also referred to as Commander Sigma or The Commander, is the main antagonist of the Mega Man X series.Created by Dr. Cain, Sigma was considered the finest of the Reploids and was the first leader of the Maverick Hunters; peace-keeping Reploids who defend humans against their renegade counterparts. Although he was once honorable, Sigma unexpectedly goes Maverick in the beginning of Mega Man X and rebels against humankind. He defects to the Mavericks and assumes the role of their leader.
Biography excerpt via Kitsu.
Sigma in numbers
- Rank in Irregular Hunter X: The Day of Sigma
- #3
- of 9 characters, by favourites
- Appearances
- 1
- 1 as a main character
- On screen
- 2005
- one year
Most-loved characters in Irregular Hunter X: The Day of Sigma
AniList favourites
- Zero104
- Rockman X82
- Sigma9
- Vile8
- Chill Penguin4
- Storm Eagle2
- Navigator2
- Thomas Light1
Show as table
| Item | Favourites |
|---|---|
| Zero | 104 |
| Rockman X | 82 |
| Sigma | 9 |
| Vile | 8 |
| Chill Penguin | 4 |
| Storm Eagle | 2 |
| Navigator | 2 |
| Thomas Light | 1 |
Appearances
More characters from Irregular Hunter X: The Day of Sigma
Sigma FAQ
What anime is Sigma from?
Sigma is a main character in Irregular Hunter X: The Day of Sigma.
Who voices Sigma?
Sigma is voiced by Mugihito in Japanese and by Gerald Matthews in the English dub.
What else is Sigma called?
Sigma is also known as Commander Sigma.
When did Sigma first appear?
Sigma first appeared in Irregular Hunter X: The Day of Sigma (2005).
What is Sigma's Japanese name?
Sigma is written シグマ in Japanese.
Where can I watch Sigma?
Open the Irregular Hunter X: The Day of Sigma page for licensed streaming links and the full episode list.







