Popularity: 6
| Creator: | John McCallum | 
|---|
| Name | Character | Episodes | 
|---|---|---|
| Ed Devereaux | Matt Hammond | 92 | 
| Ken James | Mark Hammond | 91 | 
| Tony Bonner | Jerry King | 91 | 
| John Warwick | Sir Adrian Gillespie | 8 | 
| Frank Thring | Dr. Stark | 3 | 
| John Meillon | 'Nimble' Norris | 2 | 
| Reg Evans | Fred | 2 | 
| Alexander Archdale | Byron Creswell | 2 | 
| Frank Thring | Dr. Alexander Stark | 1 | 
| Roger Ward | Carver | 1 | 
| Harold Hopkins | Tim Grant | 1 | 
| Chips Rafferty | Pop Miller | 1 | 
| Chips Rafferty | 1 | |
| Ed Devereaux | Loder | 1 | 
| Barry Crocker | Alfred | 1 | 
| Michael Caton-Jones | Young Man | 1 | 
| Sue Lloyd | Sally | 1 | 
| Gillian Jones | Jane | 1 | 
| Gary Day | Mitch | 1 | 
| Max Cullen | Keeler | 1 | 
| John Meillon | Nimble Norris | 1 | 
| Ken Goodlet | Jim Ferguson | 1 | 
| Ken Goodlet | Tom Merrick | 1 | 
| Ken James | Himself / Mark Hammond | 1 | 
| Bobs Watson | Rod | 1 | 
| Deryck Barnes | Dr. Morton | 1 | 
| Bruce Barry | Morley | 1 | 
| Jeanie Drynan | Dulcie Condon | 1 | 
| Jeanie Drynan | Iris Temple | 1 | 
| Noel Ferrier | Mr. Pearson | 1 | 
| Tommy Dysart | Andrews | 1 | 
| Darlene Johnson | Aunt Evelyn | 1 | 
| Don Crosby | Snapes | 1 | 
| Reg Evans | Stan | 1 | 
| Valerie Taylor | Paula | 1 | 
| Rod Hull | Mervin Pennyweather | 1 | 
| Graham Rouse | John Manson | 1 | 
| Edward Hepple | Ben | 1 | 
| Harry Lawrence | Mr. Carmody | 1 | 
| Jonathan Sweet | Brian | 1 | 
| Redmond Phillips | Swagman | 1 | 
| John Bonney | Pilot | 1 | 
| Moya O'Sullivan | Mrs. Mason | 1 | 
| Janet Kingsbury | Miss Vernon | 1 | 
| Alister Smart | Sergeant | 1 | 
| Alister Smart | Alf | 1 | 
| Peter Adams | Joe Bently | 1 | 
| Ken Shorter | Tim | 1 | 
| Elke Neidhart | Dr Anna Steiner | 1 | 
| Elke Neidhart | Anna Steiner | 1 | 
| Peter Gilbert Cotton | Young Man | 1 | 
| Maggie Dence | Soprano | 1 | 
| Kevin Miles | Steven Lansbury | 1 |