Hsu Kai photo

Hsu Kai

ActorTaiwanese

BIOGRAPHY

Drama school graduate, series lead and YouTuber: Taiwanese actor Hsu Kai runs his own channel between roles. He studied in the Department of Drama at Taipei National University of the Arts. He began appearing on screen in the late 2010s with a supporting part as Jiang Ji Mi in the 2017 Taiwanese television series Breeze in the Love River, and followed it with a lead role in the 2020 Public Television Service production Eclipse. Alongside acting he runs a YouTube channel called Secret Realm Hunter Kai, which documents hiking routes and outdoor locations in Taiwan, and in October 2020 he published a related book of the same name. In 2023 he played Fan Ze Rui, one of the leads of the boys love series Kiseki: Dear to Me, and reprised the role in the companion special Kiseki+. The same year he appeared in the series Way Back Home and the film Lost in Forest. On his birthday in 2024 he launched a clothing label called KAIoneer, and in 2024 he took a lead role in the film Out of Nowhere.

Eclipse is a single thriller of 83 minutes. It premiered at a festival on 19 June 2020 and was broadcast on Taiwanese television on 22 November 2020, with Tuan Chun Hao and Candy Yang in the main roles alongside him. Kiseki: Dear to Me ran for 13 episodes between 22 August and 7 November 2023 and follows an injured gangster, Fan Ze Rui, who ends up living in the apartment of a student; Taro Lin plays the student, Bai Zong Yi, and Louis Chiang plays Ai Di.

The Gangster in the Student’s Apartment

Watched Kiseki? This one is for you. Hsu Kai plays Fan Ze Rui in Kiseki: Dear to Me, thirteen episodes from 22 August to 7 November 2023: an injured gangster who ends up living in the apartment of a student, Bai Zong Yi, played by Taro Lin. Distrust, injuries and a shared roof. He came back as Fan Ze Rui for the companion special Kiseki+ too.

Four Careers at Once

He says he runs four careers at the same time: actor, secret place hunter, parkour instructor and clothing brand founder. The hunter part is his YouTube channel Secret Realm Hunter Kai, all hidden hiking routes around Taiwan, which became a photo book on 22 October 2020. He is a certified parkour instructor, advanced freediver and scuba diver, and launched his label KAIoneer on his birthday in 2024. His motto for extreme sports: going slowly is actually faster. I need that on a mug.

Kai’s Screen Trail

Start with Kiseki: Dear to Me, then the special. Next, the 2020 PTS thriller Eclipse, his first lead, with Tuan Chun Hao and Candy Yang. Then Way Back Home and Lost in Forest from 2023, and his 2024 film lead in Out of Nowhere. And he wants to make an action film one day, combining his acting and physical training. Yes please.

PROFILE DETAILS

Native Name
徐愷
Nickname
Kai
Born
(Age 33)
Gender
Male
Western Zodiac
Aquarius ♒
Profession
Actor
Nationality
Taiwanese
Debut
2017 · Breeze in the Love River (2017)
Years Active
2017 to present
Skills
Parkour, hiking, video production

FILMOGRAPHY: TV SERIES (1)

Kiseki: Dear to Me poster
Kiseki: Dear to Me
2023
Main Role

PERSONAL LIFE

Hobbies
photography, travel, hunting out hidden scenic spots around Taiwan, filming
Sports
freediving, scuba diving, parkour, river tracing, rock climbing, street workout, martial arts
Personality
patient, methodical, curious, adventurous

FUN FACTS

  • He holds a Level C coaching certification in parkour.
  • He has worked as a brand ambassador for the Taiwanese label TAIWANIZE.
  • His first on camera work was a television commercial.
  • His rule for learning extreme sports is 慢慢來比較快, going slowly is actually faster.
  • He uses custom neck gear to hold his posture while freediving.

TRIVIA

  • He joined the cast of the competition programme King of Survival Season 2 as part of Team Taiwan.
  • He holds three sports certifications, advanced freediver, scuba diver and parkour instructor.
  • He started parkour by teaching himself, then trained formally under Coach Ma Yi 螞蟻教練 and is now a certified instructor himself.
  • He worked at a night market drinks stall, and later cleared plates, poured drinks and wiped tables in restaurants.
  • His travel photo book, 秘境獵人, came out on 22 October 2020 and draws on more than two years of exploring hidden corners of Taiwan.

DREAMS & ASPIRATIONS

He wants to bring together acting, physical training and martial arts and take on an action film, and he has said he is drawn to complex roles because he simply wants to try them even knowing how hard they are.

EDUCATION

Taipei National University of the Arts, Department of Drama

FREQUENTLY ASKED QUESTIONS

How many careers does Hsu Kai say he has?

Four, running at the same time: actor, secret place hunter, parkour instructor and clothing brand founder. The second of those comes from his YouTube channel 秘境獵人, which documents hiking routes and remote scenery around Taiwan, and the nickname has stuck to him off the channel as well.

What sports qualifications does he hold?

Three. He is a certified advanced freediver, a certified scuba diver and a certified parkour instructor. He began parkour by teaching himself, then trained formally under Coach Ma Yi 螞蟻教練, and now teaches it himself.

What is his rule for learning a dangerous sport?

慢慢來比較快, going slowly is actually faster. He applies it across the extreme sports he practises, which include freediving, river tracing, rock climbing and parkour, and he uses custom neck gear to hold his posture while freediving.

What has he published and launched?

A travel photo book, 秘境獵人, on 22 October 2020, built from more than two years of exploring hidden corners of Taiwan, and a clothing label, KAIoneer, launched on his birthday in 2024. He has also worked as a brand ambassador for the Taiwanese label TAIWANIZE.

What did he do before any of this?

Shift work. He served at a night market drinks stall, and restaurant jobs later had him clearing plates, pouring drinks and wiping tables. His earliest work in front of a camera was a television commercial.

What kind of film does he want to make?

An action film, one that brings together his acting, his physical training and martial arts in the same place. He has also said he is drawn to complex roles simply because he wants to try them, knowing perfectly well how hard they are.

Which role has he played twice?

Fan Ze Rui, one of the leads of the 2023 series Kiseki: Dear to Me, whom he played again in the companion special Kiseki+. He also joined the competition programme King of Survival Season 2 as part of Team Taiwan.

Written and verified by Renkaze · Last updated 25 October 2026

A single promotional photograph is used to identify this actor, and its rights belong to whoever released it; removal on request is covered by our disclaimer.

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