It's possible you're thinking of:
* The Hammer Horror Films: This was a series of British horror films produced by Hammer Film Productions from the 1950s to the 1970s. However, there was no specific film or cycle called "Hammer Cycle" within this timeframe.
* A different film or TV series: If you could provide more information about the specific "Hammer Cycle" you're referring to, I might be able to help you find the cast list.
Please clarify the title or provide more context to help me find the right answer.