Joi Johannsson Biography: Age, Wife, Son, Parents, Height, Net Worth, Movies & TV Shows, The Deep
Jóhann G. Jóhannsson, professionally known as Joi Johannsson, is an Icelandic actor, producer, writer, and theatre performer. His career spans Icelandic, Nordic, British, German, and American productions.
His screen credits include The Deep, The Shamer’s Daughter, Fortitude, His Dark Materials, Rig 45, Eurovision Song Contest: The Story of Fire Saga, and The Fires.
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| Real Name: | Jóhann G. Jóhannsson |
| Stage Name: | Joi Johannsson |
| Born: | November 23, 1971 (age 54 years old) |
| Place of Birth: | Reykjavík, Iceland |
| Nationality: | Icelandic |
| Ethnicity: | Icelandic |
| Height: | 5 feet 10½ inches (1.79 m) |
| Religion: | Christianity |
| Parents: | Jóhann Georg Runólfsson, Lovísa Aðalheiður Guðmundsdóttir |
| Spouse: | Guðrún Kaldal |
| Relationship: | Married |
| Children: | Krummi Johannsson |
| Occupation: | Actor, Producer, Writer |
| Net Worth: | $1 million |
Early life and education
Joi Johannsson was born on November 23, 1971, in Reykjavík, Iceland. He was raised by his parents, Jóhann Georg Runólfsson and Lovísa Aðalheiður Guðmundsdóttir.
He is Icelandic and grew up in Iceland before pursuing part of his education in the United States. Details about his siblings are unknown. He follows Christianity.
Johannsson graduated Magna Cum Laude from the University of Hartford in Connecticut in 1994, earning a Bachelor of Arts degree in Theatre and Cinematic Arts. His professional training also developed through extensive theatre work in Iceland and the United States.
His Icelandic Film and Actors’ Association profile lists dance, singing, English, Danish, Norwegian, Swedish, and German among his skills.
Career
Joi Johannsson began acting professionally as a teenager, making his screen debut in 1986 in the international television miniseries Nonni and Manni. He subsequently built a substantial theatre career, performing in nearly 50 productions in Iceland and the United States.
These included A Winter’s Tale, Hair, Jerusalem, One Man, Two Guvnors, and The 39 Steps.
His film career expanded internationally. He appeared in Flags of Our Fathers, directed by Clint Eastwood, and later played Palli in Baltasar Kormákur’s acclaimed Icelandic survival drama The Deep.
He also appeared in The Shamer’s Daughter, The Falcons, Summer Children, and Eurovision Song Contest: The Story of Fire Saga.
Television became another major part of his career. His credits include The Lava Field, Fortitude, Shetland, His Dark Materials, Arctic Circle, Rig 45, Sisterhood, Fractures, and True Detective. He has also worked as a producer and writer, including the Icelandic comedy Polite People.
In 2025, Johannsson appeared as Kristinn in the Icelandic-British disaster drama The Fires. The performance brought him the 2026 Edda Award for Best Supporting Actor.
His recent screen work also includes the 2026 film The Brink of War, where he plays a KGB Colonel.
Awards and nominations
- 2026 Edda Awards — Best Supporting Actor, The Fires — Winner.
- 2013 Edda Awards — The Deep received major awards including Best Film and Actor of the Year; Johannsson appeared in the film as Palli.
Personal life
Joi Johannsson, 54 years old, has been married to Guðrún Kaldal. The couple have a child Krummi Johannsson. His professional interests extend beyond screen acting into theatre, writing, producing, singing, and languages.
He has performed extensively on stage and possesses skills in several Scandinavian and European languages, including English, Danish, Norwegian, Swedish, and German.
His hobbies and abilities also include horses, motorcycles, tennis, swimming, football, handball, basketball, golf, skiing, and billiards. His height is 5 feet 10½ inches (1.79 m).
Net worth
Joi Johannsson’s net worth is around $1 million USD. His wealth has been accumulated primarily from film acting, television acting, theatre performances, producing, writing, and commercial work.
His extensive international screen credits, stage career, and production assignments across Icelandic and international projects have provided several professional income streams throughout his career.
Filmography
- The Deep
- The Shamer’s Daughter
- Fortitude
- Eurovision Song Contest: The Story of Fire Saga
- The Fires
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