Kōichi Yamadera

Japanese voice actor
Person human Q333194
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Summary

Kōichi Yamadera was born on June 17, 1961[1], in Shiogama[2]. He has worked as an actor[3], singer[4], tarento[5], narrator[6], and radio personality[7]. He ranks in the top 0.7% of human entities by monthly Wikipedia readership (24,716 views/month, #7,039 of 1,000,298).[8]

Key Facts

  • Spouse: Robin Shoko Okada[9]
  • Country of citizenship: Japan[10]
  • Occupation: seiyū[11], voice actor[12]
  • Educated at: Tohoku Gakuin University[13]
  • Award received: Seiyu Awards Foreign Film/Drama Award[14], Kei Tomiyama Award[15]
  • Sex or gender: male[16]
  • Given name: Kōichi[17]
  • Topic's main category: Q28696384[18]
  • Languages spoken, written or signed: Japanese[19]
  • Name in native language: 山寺宏一[20]
  • Name in kana: やまでら こういち[21]
  • Blood type: A[22]
  • Start of work period: 1985[23]
  • Height: 176 cm[24]

Why It Matters

Kōichi Yamadera has Wikipedia articles in 20 language editions, a strong signal of global cultural recognition.[25] He is known by 57 alternative names across languages and contexts.[26]

FAQs

Where was Kōichi Yamadera born?

Kōichi Yamadera's place of birth was Shiogama[2].

Who was Kōichi Yamadera married to?

Kōichi Yamadera's spouses include Robin Shoko Okada[9].

What did Kōichi Yamadera do for work?

Kōichi Yamadera worked as an actor[3], singer[4], tarento[5], narrator[6], and radio personality[7].

Where did Kōichi Yamadera go to school?

Kōichi Yamadera was educated at Tohoku Gakuin University[13].

What awards did Kōichi Yamadera receive?

Honors received include Seiyu Awards Foreign Film/Drama Award[14] and Kei Tomiyama Award[15].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [16] ↑ . wikidata.org.
  3. [9] ↑ . wikidata.org.
  4. [10] ↑ . wikidata.org.
  5. [13] ↑ . wikidata.org.
  6. [3] ↑ . wikidata.org.
  7. [4] ↑ . wikidata.org.
  8. [5] ↑ . wikidata.org.
  9. [6] ↑ . wikidata.org.
  10. [7] ↑ . wikidata.org.
  11. [11] ↑ . wikidata.org.
  12. [12] ↑ . wikidata.org.
  13. [14] ↑ . animenewsnetwork.com. Retrieved . animenewsnetwork.com. Provenance: wikidata.org.
  14. [15] ↑ . animenewsnetwork.com. Retrieved . animenewsnetwork.com. Provenance: wikidata.org.
  15. [1] ↑ . wikidata.org.
  16. [17] ↑ . wikidata.org.
  17. [18] ↑ . wikidata.org.
  18. [19] ↑ . wikidata.org.
  19. [20] ↑ . wikidata.org.
  20. [21] ↑ . wikidata.org.
  21. [22] ↑ . Nihon Tarento Meikan. Retrieved . talent.yahoo.co.jp. Provenance: wikidata.org.
  22. [23] ↑ . wikidata.org.
  23. [24] ↑ . Nihon Tarento Meikan. Retrieved . wikidata.org.

Aggregate / graph-position facts

  1. [8] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [25] ↑ . Wikidata sitelinks. wikidata.org.
  3. [26] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Kōichi Yamadera. Retrieved October 17, 2026, from https://4ort.xyz/entity/k-ichi-yamadera
MLA “Kōichi Yamadera.” 4ort.xyz Knowledge Graph, 4ort.xyz, 17 Oct. 2026, https://4ort.xyz/entity/k-ichi-yamadera.
BibTeX @misc{4ortxyz_k-ichi-yamadera_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Kōichi Yamadera}}, year = {2026}, url = {https://4ort.xyz/entity/k-ichi-yamadera}, note = {Accessed: 2026-10-17}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Kōichi Yamadera — https://4ort.xyz/entity/k-ichi-yamadera (retrieved 2026-10-17)

Canonical URL: https://4ort.xyz/entity/k-ichi-yamadera · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 4d ago · ~2026-53120-15 · 2026-10-13 view diff on Wikidata ↗
    Occupation → actor, singer, tarento +4
    Wikipedia languages → ['ar', 'arz', 'ca', 'cv', 'de', 'en', 'es', 'fa', 'fi', 'fr', 'hu', 'id', 'it',
    Wikidata description → Japanese voice actor
    Claims rich → —
    "/* wbsetclaim-create:2||1 */ Occupation: voice actor"
  2. 4w ago · MsMorale · 2026-09-16 view diff on Wikidata ↗
    Kinobaza person id → koichi-yamadera
    P14487 → profile/30965
    "/* wbcreateclaim-create:1| */ Kinobaza person id: koichi-yamadera, [[:toollabs:quickstatements/#/batch/273862|batch #273862]]"
  3. 5w ago · ならちゃん · 2026-09-06 view diff on Wikidata ↗
    P14487 → profile/30965
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/52435|batch #52435]]"
  4. 6w ago · MsMorale · 2026-09-01 view diff on Wikidata ↗
    Sinemalar person id → 35864, 509582
    "/* wbcreateclaim-create:1| */ Sinemalar person id: 509582, [[:toollabs:quickstatements/#/batch/270112|batch #270112]]"
  5. 6w ago · MsMorale · 2026-09-01 view diff on Wikidata ↗
    Sinemalar person id → 35864, 509582
    "/* wbcreateclaim-create:1| */ Sinemalar person id: 35864, [[:toollabs:quickstatements/#/batch/270112|batch #270112]]"
  6. 6w ago · ならちゃん · 2026-08-31 view diff on Wikidata ↗
    P14831 → 1327
    "/* wbcreateclaim-create:1| */ P14831: 1327, #quickstatements; #temporary_batch_1788164369999"
  7. 6w ago · ならちゃん · 2026-08-31 view diff on Wikidata ↗
    P14827 → 11072
    P14750 → 5646-1180-C2FC-3A27-76DF
    "/* wbcreateclaim-create:1| */ P14827: 11072, #quickstatements; #temporary_batch_1788158030743"
  8. 9w ago · ZI Jony · 2026-08-10 view diff on Wikidata ↗
    P14768 → T0000510
    "/* wbsetclaim-create:2||1 */ P14768: T0000510"
  9. 11w ago · ならちゃん · 2026-07-31 view diff on Wikidata ↗
    P14565 → 0000035712
    Bugs! artist id → 20026014
    Supraphonline artist id → 886954
    "/* wbsetclaim-create:1||1 */ P14565: 0000035712, Matched to #mix'n'match [[:toollabs:mix-n-match/#/entry/296209453|山寺宏一 (#296209453)]] for {{P|14565}}"
  10. 13w ago · ならちゃん · 2026-07-17 view diff on Wikidata ↗
    Cine21 person id → 34312
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/42112|batch #42112]]"
  11. 13w ago · ならちゃん · 2026-07-11 view diff on Wikidata ↗
    P14588 → 454
    "/* wbcreateclaim-create:1| */ P14588: 454, #quickstatements; #temporary_batch_1783813548823"
  12. 17w ago · BorkedBot bot · 2026-06-16 view diff on Wikidata ↗
    Textove.com artist id → kouichi-yamadera
    Lyricstranslate id → koichi-yamadera-lyrics.html
    Nientepopcorn person id → kouichi-yamadera
    Trakt.tv id → people/koichi-yamadera-44b5305d-9fa5-40f4-b8bd-d85c2f2c2b86
    + 17 other properties edited (see Wikidata diff for full list)
    "/* wbsetqualifier-add:1| */ Subject named as: Kōichi Yamadera, update metadata from fandom API ([[:toolforge:editgroups/b/CB/67b0222d7adc|details]])"
  13. 17w ago · ならちゃん · 2026-06-15 view diff on Wikidata ↗
    Deutsche synchronkartei actor id → 22714
    The numbers person id → 1586690401
    "/* wbsetclaim-create:1||1 */ The numbers person id: 1586690401, Matched to #mix'n'match [[:toollabs:mix-n-match/#/entry/67230084|Kōichi Yamadera (#67230084)]] for {{P|4657}}"
  14. 20w ago · ならちゃん · 2026-05-27 view diff on Wikidata ↗
    P14487 → profile/30965
    "/* wbsetclaim-create:2||1 */ P14487: eiga/artist/30965"
  15. 22w ago · ならちゃん · 2026-05-12 view diff on Wikidata ↗
    P14419 → 44670
    "/* wbcreateclaim-create:1| */ P14419: 44670, #quickstatements; #temporary_batch_1778615331778"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.