Here's why Charles is significant:
* He's the victim: The story revolves around solving his murder, making him a key figure in the narrative.
* He's connected to multiple suspects: His relationship to both the father, John Turner, and the son, the accused, makes him a central point of connection for the investigation.
* His character is ambiguous: There are hints about his personality, particularly the potential for trouble with his employer, John Turner, and his possible involvement in the murder itself. This ambiguity adds a layer of intrigue.
Other notable minor characters with their characteristics:
* John Turner: The father of the accused, a gruff and seemingly unsympathetic man who is initially a prime suspect.
* The "Red-Headed Man" (later identified as John Turner): A mysterious figure who is initially the sole witness of the crime and whose account is full of contradictions.
* Alice Turner: The daughter of John Turner and the sister of the accused, a young woman who is seemingly innocent but has a secretive past.
* Mr. Cushing: The owner of the Boscombe Valley Farm, who provides crucial information about Charles McCarthy's character and his relationship with John Turner.
Choosing "Charles McCarthy" as a minor character highlights the importance of even seemingly insignificant figures in shaping a complex mystery like "The Boscombe Valley Mystery".