- Florence Stanley• 1954–1956
- Ludwig Donath• 1955–1956
- Sydney Smith• 1954–1955
- Leon Janney• 1954–1955
- Warren Parker• 1954
- Edgar Stehli• 1954–1958
- Wesley Addy• 1954–1955
- Roger De Koven• 1954–1955
- George Voskovec• 1955–1960
- Elizabeth Lawrence• 1955–1958
- James Lipton• 1955
- Whitfield Connor• 1958–1962
- Ford Rainey• 1958
- Leif Erickson• 1954
- Phillip Pine• 1954
- Martin Ritt• 1954
- Joe De Santis• 1954
- Marian Seldes• 1954
- Michael Tolan• 1954
- Berry Kroeger• 1954
- Frank Fenton• 1954
- Harold Miller• 1954
- Norman Rose• 1954
- Miriam Colon• 1955
- Lynn Loring• 1955
- Raymond Massey• 1955
- Larry Gates• 1955
- Gregory Morton• 1955
- Grant Richards• 1955
- Lili Darvas• 1955
- Basil Howes• 1955
- Mark Rydell• 1956
- Richard Trask• 1956
- Jonelle Allen• 1958
- Alan Manson• 1958
- Herb Voland• 1958
- Max Adrian• 1958
- Anne Francine• 1958
- Chris Gampel• 1958
- Eugene Francis• 1958
- Diana Hyland• 1960
- Philip Abbott• 1960
- Geoffrey Horne• 1960
- Barbara Eiler• 1960
- Mary Fickett• 1960
- Joanna Roos• 1960
- Eileen Brennan• 1961
- Larry Hagman• 1961
- Ruth McDevitt• 1961
- Helen Martin• 1961
- Arthur Hill• 1962
