In a hypothetical casting for the television series or film franchise centered around Dashiell Hammett
's infamously calm, cool, and collected literary detective, Sam Spade
What age of a person would be considered having enough experience and gravitas that the character is known for? Then again, I could frame the hypothetical series or franchise as a prequel to the novels where we follow the character as he's learning his trade prior to the novels?
Okay... to clarify? What is the character's age in the first Hammett novel? Start that first.