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Michael Kostroff - Actor, Writer, Speaker

Michael Kostroff


Michael Kostroff is a busy working television and stage actor, as well as a free-lance writer, speaker and instructor. He served as advice columnist for the actors’ publication, Back Stage from 2006-2013. He is also the author of the popular book, Letters from Backstage, a funny, behind-the-scenes chronicle of his time on the road with two Broadway tours.

Best known for his five seasons on HBO’s acclaimed hit, The Wire, and his two seasons on Disney’s Sonny with a Chance, Kostroff has appeared on dozens of other TV shows including Banshee, The Good Wide, Blue Bloods, Law and Order: SVU, Brothers and Sisters, Cold Case, Weeds, Studio 60, The Closer, Without a Trace, Veronica Mars, Boston Legal, West Wing, ER, and many more.

Kostroff was in the first national tour of The Producers, understudying the lead role of Max Bialystock, a role he has since gone on to play all over the country. He also toured as the evil innkeeper, Thénardier, in Les Misérables, and reprised that role in the acclaimed 25th anniversary production. He’s performed at some of the nation’s most respected regional theatres, including Paper Mill Playhouse, Goodspeed Opera House and San Jose Rep, where he met his wife (the theatre’s house manager) while appearing in their production of Laughter on the 23rd Floor. Most recently, he stood-by for Lewis J. Stadlen on Broadway in Lincoln Center’s The Nance, starring Nathan Lane.

His popular Audition Psych. 101 workshop has been presented all over the country, with actors claiming tremendous improvements in their ability to conquer their audition nerves and anxieties. He’s currently working on a book that will bring the workshop to a wider circle of actors.