ANIME:

Yu-Gi-Oh! Duel Monsters Appointed Staff:
Tatsunoboshi Horoko - Main Japanese Translations, 1st Run Timing, 2nd Run Quality Control
Symbion - Raw Source, Japanese Translations Consultant, Editor 2nd Run Timing, 1st Run Quality Control, Typesetter, Encoder, Distribution

Yu-Gi-Oh! Duel Monsters GX Appointed Staff:
Tatsunoboshi Horoko - Main Japanese Translations, 1st Run Timing, 2nd Run Quality Control
Symbion - Raw Source, Japanese Translations Consultant, Editor 2nd Run Timing, 1st Run Quality Control, Typesetter, Encoder, Distribution

Yu-Gi-Oh! 5D's Appointed Staff:
Tatsunoboshi Horoko - Main Japanese Translations, 1st Run Timing, 2nd Run Quality Control
Symbion - Raw Source, Japanese Translations Consultant, Editor 2nd Run Timing, 1st Run Quality Control, Typesetter, Karaoke, Encoder, Distribution

MANGA:

Yu-Gi-Oh! GX (Manga) Appointed Staff:
Tatsunoboshi Horoko - Japanese Translations, Editor, Quality Control
shriek - Raw Source, Page Editor & Cleaner, Distribution
Evil Bakura - Digital Color Spread Artist (colorization)

Yu-Gi-Oh! R (Manga) Appointed Staff:
Tatsunoboshi Horoko - Japanese Translations, Editor, Quality Control
shriek - Raw Source, Page Editor & Cleaner, Distribution

FULL CURRENT STAFF LIST:

Tatsunoboshi Horoko (DM, DM-GX, 5D's)
Jobs: Founder, Head Episode & Manga Translator, Co-Webmaster, Episode Main Timer, Episode & Manga Quality Control

Symbion (DM, DM-GX, 5D's)
Jobs: Co-Head Episode Translator & Editor, Episode Encoder, Episode Typesetter, Episode 2nd Run Timer, Episode Karaoke, Episode Quality Control, Episode Raw Source, Episode Distribution

shriek (GX, R)
Jobs: Webmaster & Site Owner, Manga Page Editor & Cleaner, Manga Raw Source, Manga Distribution, Episode Encoder

Evil Bakura (GX, R)
Jobs: Manga Digital Color Spread Artist (colorization), Episode Timing, Episode Karaoke

Others:
Ryoma_Echizen - Japanese Translations (Episode 4)
Shogo_Ramza - Japanese Translations (GX Manga Chapter 6)
B Luster Knight - Japanese Translations Consultant (Mid-Era TnKP)
Penguin Zero - Japanese Translations (Pre-Current TnKP)
Dirtydude16 - Timing, Episode Raw Source (Pre-Current TnKP)
Athena - Japanese Translations/Japanese Translations Consultant (Pre-Current TnKP)