Directing
William Markus, born Karl William Marcus, was a Finnish-British film director, actor, screenwriter, and producer. Born in Liverpool to a Finnish father and an English mother, he held dual citizenship in Finland and the United Kingdom. Markus began his acting career in 1944 and later transitioned into directing. He directed 13 films between 1953 and 1965, with notable works including Miriam (1957), which was entered into the 8th Berlin International Film Festival. His films often explored complex social themes, contributing significantly to Finnish cinema during his active years.

Rakas varkaani
as William Markus (uncredited)

The Log Drivers
as Arne
Matkailijan keitaita

On lautalla pienoinen kahvila
as Vuoristo 'Eräs'

Suomalaistyttöjä Tukholmassa
as Sven

All this - and Iceland too

Kenraalin morsian
as Olavi Naula

Vain laulajapoikia
as Dr. Kaarlo Lehmus

Hornankoski
as Aarne Yli-Koskela

Hormoonit valloillaan
as konttoripäällikkö Kivi