This was a showcase for many productions written by Douglas Bank (The Preacher, and Journey to a Lonely Star) as well as well-known plays of the time including Jenny Kissed Me, Room Service, The Lawyer, Harvey, and The Second Man.

Many actors had performed there including Stanley Adams, Anne Baxter, Ken Mayer, Michael Fox and Louella Parsons, and directors Larry Stewart and Arthur M. Lowe, Jr., as well as others.

For the next 30 years he taught such stars as George Clooney,[1] Lana Parrilla, Alec Baldwin, Giovanni Ribisi, Tom Selleck, Michelle Pfeiffer, Ted Danson, Tony Danza, Jeffrey Tambor, Gene Reynolds, Tyne Daly, Mel Harris, Catherine Bell, Sofia Milos, Christy Carlson Romano, Jenna Elfman, Doris Roberts, Miguel Ferrer, James Cromwell, Anne Archer, Larry Miller, John Glover, James Wilder, Jennifer Aspen.

His experience as a director led him to a highly individual and adaptive way of training actors, mostly based in the simple observation and recreation of human behavior, along with an understanding of what's happening in the story.

During Milton's life there were persistent rumors that he was trying to proselytize his religion through his teaching - but the total percentage of students who had any connection with Scientology was never more than 10%, and in 2004 Katselas in fact fell out of favor with Scientologist celebrities.