Who plays Duncan in Happiness for Beginners? (Alexander Koch age, height, Instagram)
Michael Green
Updated on March 22, 2026
If you’re a fan of Alexander Koch, we absolutely implore you to check out his latest title, Happiness for Beginners, on Netflix. (And even if you don’t know the actor too well, we still think the film is worth a watch!)
In the 2023 film, Alexander plays the role of Duncan, the happy-go-lucky younger brother of Helen, who’s played by the charismatic leading star Ellie Kemper. But there’s way more to Duncan than meets the eye.
You’ll have to stream Happiness for Beginners to learn more about the character. However, you only have to read on to learn everything there is to know about Alexander!
Check it out below!
Alexander Koch was born on Feb. 24, 1988, in Grosse Pointe Park, Michigan. He is currently 35 years old and a Pisces. He attended The Theatre School at DePaul University in Chicago, Illinois, so if you have pride for both Michigan and Illinois, this may be the actor you’re going to love.
As per Celeb Heights, Alexander stands at about 6-feet-1-inch. He has dark brown hair and eyes.
From hanging out at a baseball field to sawing through wood to create a very unique project, Alexander’s Instagram, @kochakola, is filled with his quirky adventures that you’re definitely going to be a tad jealous of. Safe to say, his life is far from normal, so if you’re into some of the things he’s into, be sure to join his 31,900 followers and become a fan.
This isn’t the first time you’ll see Alexander, on your screen as this American actor isn’t exactly a stranger to the camera. In fact, there’s a good chance you’ll recognize a few of the titles that he’s been in. Check out some of his titles here:
Now that you know a little more about Alexander, don’t forget to head to Netflix to stream every second of Happiness for Beginners!
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