This list is for characters that are shared across different MiHoYo games. Characters that appear in a series purely due to a collab (e.g. Sparkle (Honkai: Star Rail) and her Fictitious Game skin) or are direct crossovers (e.g. Welt Yang and Blade (Honkai: Star Rail)) should not be added.
Appearance and role-dominant
Kiana Kaslana - base
- K-423 (HI3)
- Nexus Anima
Kiana Kaslana - alternate
- Herrscher of the Void
- Asmoday (Genshin Impact)
- Sunbringer (Zenless Zone Zero) (Zenless Zone Zero)
Raiden Mei
- Honkai Impact 3rd
- Doctor Mei
- Raiden Shogun
- Acheron (Honkai: Star Rail) (HSR)
Bronya Zaychik - Haxxor Bunny
- Honkai Impact 3rd
- Silver Wolf (Honkai: Star Rail) (HSR)
Bronya Zaychik - Post-Honkai
- Honkai Impact 3rd
- Bronya Rand (HSR)
Murata Himeko
- Honkai Impact 3rd
- Honkai: Star Rail
- Mavuika (Genshin Impact) (Genshin)
Elysia (Honkai Impact) and Cyrene (Honkai: Star Rail) - base
- Miss Pink Elf (HI3)
- Philia093 (HSR)
- Remielle Dan (ZZZ)
Elysia (Honkai Impact) and Cyrene (Honkai: Star Rail) - alternate
- Herrscher of Human: Ego (HI3)
- Demiurge (HSR)
Otto Apocalypse
- Honkai Impact 3rd
- Luocha (Honkai: Star Rail) (HSR)
Yae Sakura
- Honkai Impact 3rd
- Yae Miko (Genshin)
- Evanescia (Honkai: Star Rail)/Hiei (HSR)
Seele Vollerei
- Honkai Impact 3rd
- Honkai: Star Rail
Natasha Cioara
- Honkai Impact 3rd
- Honkai: Star Rail
Cocolia (Honkai Impact)
- Honkai Impact 3rd
- Honkai: Star Rail
Kafka
- Franz Kafka (HI3)
- Kafka (Honkai: Star Rail) (HSR)
Li Sushang
- Honkai Impact 3rd
- Honkai: Star Rail
Ma Yanqing
- Honkai Impact 3rd (left)
- Honkai: Star Rail
Nuwa (Honkai Impact)/Lingsha (Honkai: Star Rail)
- Nuwa (HI3)
- Lingsha (HSR)
Shub Niggurath (Honkai Impact)
- Honkai Impact 3rd
- Caterina (Honkai: Star Rail) (HSR)
Kevin Kaslana/Phainon (Honkai: Star Rail)
- Kevin Kaslana (HI3)
- Phainon (HSR)
Barbara (Genshin Impact)/Hyacine (Honkai: Star Rail)
- Barbara (Genshin)
- Hyacine (HSR)
Furina (Genshin Impact)/Cerydra (Honkai: Star Rail)
- Furina (Genshin)
- Cerydra (HSR)
Wendy (Honkai Impact)/Venti (Genshin Impact)
- Wendy (HI3)
- Venti (Genshin)
Attributes-dominant
Aponia/Aglaea (Honkai: Star Rail)
- Aponia (HI3)
- Aglaea (HSR)
Su (Honkai Impact)/Anaxa (Honkai: Star Rail)/Alhaitham (Genshin Impact)
- Su (HI3)
- Anaxa (HSR)
- Alhaitham (Genshin)
Pardofelis/Cipher (Honkai: Star Rail)/Kirara (Genshin Impact)
- Pardofelis (HI3)
- Cipher (HSR)
- Kirara (Genshin)
Eden (Honkai Impact)/Hysilens (Honkai: Star Rail)
- Eden (HI3)
- Hysilens (HSR)
Appearance-only, no relation
Clara-Helia-Thelema
- Clara (Honkai: Star Rail) (HSR)
- Erdos Helia (HI3)
- Thelema Nutriscu (HI3)