"Journey Into Darkness" is a television movie which consists of two episodes from the UK TV series "Journey to the Unknown 1968)": 'The New People (1968)" (Episode 1.1) and "Paper Dolls (1968)" (Episode 1.16).
| Actor | Role |
|---|---|
 Patrick McGoohanHost | Host |
 Robert ReedHank Prentiss | Hank Prentiss |
 Jennifer HilaryAnne Prentiss | Anne Prentiss |
 Michael TolanCraig Miller | Craig Miller |
 Nanette NewmanJill Collins | Jill Collins |
 Dorothy AlisonMrs. Latham | Mrs. Latham |
 Patrick AllenLuther Ames | Luther Ames |
 George BensonThe Vicar | The Vicar |
| AAnthony ColbyBen | Ben |
 Adrienne CorriTerry Lawrence | Terry Lawrence |
 Noel DavisCharles Philips | Charles Philips |
 Catherine FinnElsie Cole | Elsie Cole |
 Edward HardwickeDr. Frank Yarrow | Dr. Frank Yarrow |
| HHazel HughesMrs. Biddle | Mrs. Biddle |
| JJune JagoEmily Blake | Emily Blake |
| SSuzanne MocklerSusan Redford | Susan Redford |
 Milo O'SheaMatt Dystal | Matt Dystal |
| BBeryl RichardsonRhoda | Rhoda |
 Michael RipperAlbert Cole | Albert Cole |
 Barnaby ShawRichard Brereton | Richard Brereton |
 Roderick ShawRodney Blake | Rodney Blake |
 Melissa StriblingHelen Ames | Helen Ames |
 Damien ThomasDavid Redford | David Redford |
 Kenneth J. WarrenJoe Blake | Joe Blake |
 Jerold WellsMayhew | Mayhew |
 John WelshBart Brereton | Bart Brereton |