Blackmailers Should Be Discouraged
- Episode aired Feb 26, 1969
![Edward Woodward in Callan (1967)](https://m.media-amazon.com/images/M/MV5BNzA5YTQ2MmMtN2NhNC00NjAwLTgyOTctYjkzMDdhMjMxY2Q3XkEyXkFqcGdeQXVyMTk0MjQ3Nzk@._V1_QL75_UY281_CR2,0,190,281_.jpg)
Callan looks into the past of a Canadian Atomic Corporation official when a letter comes in stating is background should be checked.Callan looks into the past of a Canadian Atomic Corporation official when a letter comes in stating is background should be checked.Callan looks into the past of a Canadian Atomic Corporation official when a letter comes in stating is background should be checked.