Silent Number Tightrope (1974– ) Online
- Original Title :
- Tightrope
- Genre :
- TV Episode / Crime
- Year :
- 1974–
- Directror :
- Ron McLean
- Cast :
- Grigor Taylor,Elizabeth Alexander,Deryck Barnes
- Writer :
- Ron McLean,Roger Mirams
- Type :
- TV Episode
- Time :
- 1h
- Rating :
- 6.1/10
| Episode credited cast: | |||
 | Grigor Taylor | - | Steve Hamilton |
 | Elizabeth Alexander | - | Jean Hamilton |
| Deryck Barnes | - | Sgt. Gil Gilbert |
 | Tony Wager | - | Dr. Gordon Johnson |
| Don Reid | - | Dr. Wills |
| Rosalind Speirs | - | Pat Casey |
| Rest of cast listed alphabetically: | |||
| Alfred Bell | ||
| Raymond Duparc | ||
| Noel Ferrier | ||
| Julie Kirby | ||
| Richard Lupino |