He graduated from the M. Konopnickiej High School in Legionowo, and then in 1990 from the Theatre Academy in Warsaw.
In 1989-1991 he performed with the Contemporary Theatre (Teatr Współczesny), in 1991-1992 at the Ateneum Theatre and Theatre Scene Presentations (Teatr Scena Prezentacje), and in 1998-2010 he appeared at the National Theatre (all in Warsaw).
Since 2007 he has been a national Goodwill Ambassador for UNICEF. Since 2009 he has been an honorary citizen of Legionowo. He has a wife Paulina and three children Ewa (born 1993), Karol (born 2000), and Wiktor (born 2002).
Żmijewski voiced in two Disney movies. He;s best known as titular main character, Ojciec Mateusz.
- Żmijewski is also a director to many episodes of Ojciec Mateusz.
- He was in 1991 nominated to Polish Film Festival award, Grand Prix Golden Lions.