He was born in Prague, but spent his childhood in northern Moravia. In 1989 he was accepted to study directing at the Theatre Faculty of the Academy of Performing Arts in the class of Prof. J. Vostrý. While still a student, he worked with Studio A Rubín (among other things, he staged L. Lagronová's play Antelope there) and then, together with his year-mates, he joined the Drama Studio in Ústí nad Labem in 1993. In the following years he collaborated as a director with many other theatres. Among them are the Labyrinth Theatre (today's Švanda's Theatre in Smíchov), where he staged S. I. Witkiewicz's play Mother (1996), at the Palmovka Theatre he directed T. Middleton and W. Rowley's play The Cangeling (1999), and at the Prague Drama Club his productions of T. Letts' Killer Joe (1996), W. Shakespeare's The Taming of the Shrew (1997), and productions of W. Shakespeare's The Tempest (2000) and Molière's Tartuffe (2001) at the Celetná Theatre. Important for Michal Lang was his engagement at the Švanda's Theatre in Smíchov between 2002 and 2010, where he directed several successful productions - e.g. P. Chekhov's The Uncle Vanya, etc. Lang's original plays The Snake Ball (2003; in 2018 it was also staged at the Hrvatsko narodno kazaliště in Varaždin, Croatia), Dávníkové (2008) and a theatrical adaptation of R. Denemarková's book Money from Hitler (2010).
Michal Lang's productions could also be seen by Ostrava audiences at the Moravian-Silesian National Theatre and the Arena Chamber Theatre, and he has guest directed at the South Bohemian Theatre in České Budějovice, the Moravian Theatre in Olomouc, the Horácké Theatre in Jihlava and the National Theatre in Brno (a production of L. Kirkwood's play The Welkin). He has also collaborated with theatres abroad - in the Polish Teatr H. Modrzejewska Theatre in Legnica, where he staged J. Ford's comedy Tis Pity She's a Whor (1999), and at the Loyola Marymount University Theatre in Los Angeles, where he directed the play C. Churchill Cloud Nine (2007).
Since 1 September 2013 he has been the director and artistic director of the Theatre pod Palmovkou, where he came from the Theater F. X. Šalda in Liberec, where he was artistic director of the drama since 2011. As a director at Divadlo pod Palmovkou, he has prepared productions of Lorca's poetic drama The Blood Wedding, play by M. Norman, T. Stoppard and L. Hall Shakespeare in Love, Shakespeare's The Taming of the Shrew, dramatisation of The Year in the Village by the Mrštík brothers or Enquist's play The Night of the Tribades. He has also staged his own adaptations of Goldoni's The Chioggia Scuffles, Shakespeare's Othello, Molière's Don Juan, Shakespeare's A Midsummer Night's Dream, Shaw's Pygmalion and Massini's play The Manhattan Project. In 2019, Lang's original play Happy Chicken cz – The Poultry Farm had its world premiere at the Palmovka Theatre. In the Czech premiere at Divadlo pod Palmovkou he staged Dorota Masłowska's play Two Poor Romanians Who Speak Polish, J. Hodge's black comedy The Collaborators, a dramatisation of J. Littell's novel The Kindly Ones, a dramatisation of G. Flaubert's novel Madame Bovary and his own dramatisation of K. Tučková's The Zitkova Gooddness. In 2022, the film To Seeing Salisbury, directed by Michal Lang and based on the play by V. Šenderovič, had its world premiere.
In 2016, he initiated and has since directed the international theatre festival PALM OFF FEST, which has been attended by the best of contemporary Central European theatre. He has also been a member of several rock bands and has written incidental music for many of his productions. Under his leadership, Divadlo pod Palmovkou won the prestigious Czech Theatre Critics' Award for Theatre of the Year and many other prestigious awards.
