Kai Alexander
Known For: Acting
Biography
Kai Alexander is an actor, known for his role as Sgt. William Quinn in the miniseries Masters of the Air (2024) from Steven Spielberg, Tom Hanks and Gary Goetzman. He began his career with roles in award winning comedy series Catastrophe (2015) and the Harlan Coben thriller The Stranger (2020). He later went on to portray Richard Branson in Danny Boyle's Pistol (2022). In 2025 Alexander played Lyle Jennings in the Scott Frank helmed series Dept. Q (2025). He will next be seen in Anxious People (2026) alongside Angelina Jolie and Jason Segel, directed by Marc Forster.
Filmography
2026
2025
- Dept. Q as Teenage Lyle
2024
- Masters of the Air as Sgt. William Quinn
2022
- Pistol as Richard Branson
2020
- The Stranger as Dante Gunnarsson
2014
- Original Drama Shorts as William
1985
- EastEnders as Male Interviewee