- Peter Brocco - Prof. Cleeter
- Joe Quinn - Plain-clothes Man
- Tony Russel - Michael Delak (as Tony Russo)
- Frank Maxwell - Rector
- Meg Wyllie - Miss Kelvin
- Leonid Kinskey - Stashek
- Anne Seymour - Dean Norse
- Leonard Strong - King Felix
- John Hoyt - B.E. Raleigh
- Milton Parsons - Thoreau
- Charles Bateman - Tomkins
- Reggie Nalder - Emil
- Anne Neyland - Jean Clayton
- Bek Nelson - Virginia Carter
- Shelly Manne - Combo Musician at Mother's
- David O. McCall - Old Seaman (as David McCall)
- Fred Sherman - Harry (as Fred E. Sherman)
- Warren J. Kemmerling - Bennett (as Warren Kemmerling)
- Fintan Meyler - June Holton
- Guy Prescott - Nat Krueger
- Linda Lawson - Lynn Martel
- David Tomack - Babe Santano
- John Nolan - Father Crowther
- Blake Edwards
Leonid Kinskey interpreta a Stashek en la serie.
Craig Stevens hace el papel de Peter Gunn.
Lola Albright interpreta a Edie Hart en la serie.
Herschel Bernardi interpreta a Lieutenant Jacoby en la serie.
Minerva Urecal interpreta a Mother en la serie.
Capítulo disponible en las siguientes plataformas:
