In the fourth installment of the fighting franchise, Boyka is shooting for the big leagues when an accidental death in the ring makes him question everything he stands for. When he finds out the wife of the man he accidentally killed is in trouble, Boyka offers to fight in a series of impossible battles to free her from a life of servitude.
Is Boyka: Undisputed IV on Netflix? Yes! The movie Boyka: Undisputed IV is now on Netflix in the countries listed below.
| Crew | Tim Man | Martial Arts Choreographer |
| Crew | Tim Man | Stunt Coordinator |
| Directing | Tim Man | Action Director |
| Writing | David N. White | Writer |
| Writing | Tony Mosher | Writer |
| Directing | Todor Chapkanov | Director |
| Writing | Boaz Davidson | Story |
| Production | Valentin Dimitrov | Line Producer |
| Editing | Irit Raz | Editor |
| Production | Avi Lerner | Executive Producer |
| Production | John Thompson | Producer |
| Production | Trevor Short | Producer |
| Crew | Ivan Vatsov | Cinematography |
| Production | Christa Campbell | Executive Producer |
| Production | Mark Gill | Producer |
| Production | Lati Grobman | Executive Producer |
| Production | Les Weldon | Producer |
| Art | Orlin Grozdanov | Set Decoration |
| Production | Boaz Davidson | Producer |
| Production | Mariana Stansheva | Casting |
| Sound | Stephen Edwards | Music |
| Production | Isaac Florentine | Producer |
| Production | Lonnie Ramati | Co-Executive Producer |
| Sound | Tapio Liukkonen | Foley Artist |
| Production | Vincent Cheng | Executive Producer |
| Costume & Make-Up | Ivon Ivanova | Makeup Artist |
| Art | Valentina Mladenova | Production Design |
| Costume & Make-Up | Daniela Avramova | Key Makeup Artist |
| Costume & Make-Up | Dimitrina Stoyanova | Hairstylist |
| Directing | Mariana Vodenicharova | First Assistant Director |
| Directing | Kristina Sakizli | Second Assistant Director |
| Crew | Ivo Jivkov | Special Effects |
| Crew | Viktor Hristov | Stunts |
| Crew | Trayan Milenov-Troy | Stunts |
| Crew | Georgi Manchev | Stunts |
| Crew | Velizar Peev | Stunts |
| Crew | Emilien De Falco | Stunts |
| Crew | Alexander Hristov | Stunts |
| Crew | Danko Jordanov | Stunts |
| Crew | Tsvetolyub Iliev | Stunts |
| Crew | Veselin Troyanov | Stunts |
| Crew | Ivan Iliev | Stunts |
| Crew | Teodor Tzolov | Stunts |
| Crew | Marina Yordanova | Stunt Double |
| Camera | Kiril Valchanov | Second Unit Director of Photography |
| Lighting | Hristo Idakiev | Gaffer |
