Kacey Mottet Klein is a Swiss actor. He made his screen acting debut at the age of ten in Ursula Meier's "Home", winning a Swiss Film Award for Best Emerging Talent. He followed this with another Swiss Film Award for Best Actor and a César nomination for the lead in Meier's "Sister".
| Movie | The Lost Princess | Mr. Cohen | 2025-10-16 | 
| Movie | All For One | Richelieu | 2025-01-22 | 
| Movie | De Gaulle - Partie 1 : La France Libre | 2024 | |
| Movie | Northern Wind | Vincent | 2018-01-10 | 
| Movie | Kings for a Day | Micka | 2018-05-02 | 
| Movie | Keep Going | Samuel | 2018-09-13 | 
| Movie | The Royal Exchange | Don Luis | 2017-12-27 | 
| Movie | Being 17 | Damien Delille | 2016-02-27 | 
| Movie | Warriors | Thomas | 2015-01-01 | 
| Movie | A Mother | Guillaume | 2015-06-24 | 
| Movie | Kacey Mottet Klein, Birth of an Actor | Self | 2015-11-07 | 
| Movie | Keeper | Maxime | 2015-09-13 | 
| Movie | Gemma Bovery | Julien Joubert | 2014-09-10 | 
| Movie | Cadrage/débordement | Rico | 2013-12-09 | 
| Movie | The Suicide Shop | Alan Tuvache (voice) | 2012-09-26 | 
| Movie | Sister | Simon | 2012-04-04 | 
| Movie | Gainsbourg: A Heroic Life | Lucien Ginsburg | 2010-01-20 | 
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