Campaign field guide
MW4 Cast & Characters: Ko, Kal, Ju Kwon and Voice Actors
Match MW4 campaign characters with their English-language performers, including Ko, Kal, Ju Kwon and the Archer. Spoiler-light; operator unlocks are listed separately.
Quick character lookup
Ko Jin-Hyuk is played by Lanny Joon; Kal by Joseph Lee; Ju Kwon by Ki Hong Lee; the Archer by Mads Mikkelsen. These are separate roles. This guide covers the 2026 Modern Warfare 4 campaign and keeps major story outcomes out of the cast list.
Campaign cast table
Wide tables can be scrolled sideways.
| Campaign character | English-language performer |
|---|---|
| Ko Jin-Hyuk | Lanny Joon |
| Kal | Joseph Lee |
| Ju Kwon | Ki Hong Lee |
| Park Hyun-Jun | Young Mazino |
| John Price | Barry Sloane |
| Simon “Ghost” Riley | Samuel Roukin |
| Kyle “Gaz” Garrick | Elliot Knight |
| The Archer | Mads Mikkelsen |
| Kate Laswell | Rya Kihlstedt |
| Reginald West | Luke Tennie |
| Joseph Dunn | William Lipton |
| So Jae-Woo | Jae Kim |
| Cho Han | Joon Lee |
| Yun Jong-Moon / Moon | Daniel J. Kim |
| Ri Ju-Young | Prisca Kim |
| Ri Seung-Ho | Jeongmin Cho |
| Valeria Garza | Maria Elisa Camargo |
| Vladimir Makarov | Julian Kostov |
| Philip Graves | Warren Kole |
| Milena Romanova | Tina Ivlev |
| Colonel Shaw | Shawn Hatosy |
The table cross-checks Radio Times' cast list with TechWiser's October 22 character reference. Ju Kwon's pairing is listed by TechWiser; the other priority pairings also appear in the Radio Times list. It is a principal-character reference, not every background or localization credit.
Ko, Kal and Ju Kwon are different characters
Ko's credited name is Ko Jin-Hyuk. Kal is Joseph Lee's character; Radio Times expands the name as Kwon Hae-Soo, while TechWiser spells it Kwon Sae-Soo. We retain Kal as the lookup label rather than silently choosing a disputed full spelling. Ju Kwon is a separate role played by Ki Hong Lee.
Park is another character, played by Young Mazino. An actor's name, a character's callsign and an Operator's unlock label answer different questions; use the pairing in the table when identifying a face or a voice.
English performances and localized voices
These are the English-language performance credits reported by the sources. They do not establish the Japanese or Korean dub cast. A shared face model does not mean every localized voice is performed by that actor. Japanese and Korean voice-credit lists have not been verified for this page.
Searching for Reiner Yang or Reina Yang? Neither spelling is assigned a campaign role in the checked cast lists. No character identity or actor pairing is inferred from those searches.
Looking for an Operator unlock instead?
Use Operators and unlock requirements for playable selections and skins. Kal and Ju Kwon appear in that directory, but a campaign appearance is not an unlock method. Price and Ghost have separate edition checks. Plot outcomes belong on the spoiler-marked ending explanation.
Sources and review
Checked October 23, 2026: Radio Times — cast list and TechWiser — character/performer table. Proper names follow the English reference credits; full-name conflicts remain visible. Image: the TechWiser cast reference, game imagery © Activision.