Alex Klaasen (1976) is a versatile Dutch actor, theatre maker, and singer, active in theatre, musicals, film, and television.
After graduating from the Academy of Cabaret, he performed in musicals such as BRIGITTE and TOON, as well as in Ro Theater productions like LANG EN GELUKKIG, WOEF SIDE STORY and DE GELAARSDE POES, for which he also wrote song lyrics.

Together with Martine Sandifort, he won the Cameretten cabaret competition and the Pall Mall Export Prize. His solo performance EINDELIJK ALLEEN was awarded the Neerlands Hoop Prize. He also performed at theatre festival De Parade, including collaborations with Henry van Loon.

On television, he appeared in HET KLOKHUIS, MISSIE AARDE, WELKOM IN DE GOUDEN EEUW, and as Yari in GOOISCHE VROUWEN (both the series and the films). On the big screen, he starred in CHEZ NOUS and HET VERLANGEN. With his shows SHOWPONIES 1&2, and NO PONIES, he received widespread acclaim. He has won six Musical Awards, the Johan Kaart Prize, and the Poelifinario Award for SHOWPONIES 2. He received the Annie M.G. Schmidt Prize for the songs Gewoon Opnieuw and 152W96TH Street.

Last year, he played King Herod in JESUS CHRIST SUPERSTAR. In 2026, the musical Alex created, wrote and starred in named STOORNIS OF MY LIFE received both the musical award best small musical as well as best script.