The Op is an operative, a detective, who works for the Continental Detective Agency. He appears in numerous short stories and two novels, but is never named. Short, rotund, late 30s or so when we first meet him. We know little of his personal life, except...
He is the senior Mr. Grovers butler.more...
He is the father of Frederick. Wealthy. Nickname is "Henny."more...
An accountant, he is a "human adding machine," according to The Op.more...
Police officer involved in the Grover investigation. He is also involved in the Montgomery Hotel investigation....
Police detective on the Grover investigation. He is also involved in the Montgomery Hotel investigation. He gets involved in the Teal killing....
A hard-bitten citizen, he had been a friend of Henry Grover for decades. Knew him from Ontario, Canada; they had met during an 1890s gold rush there....
Farr is a photographer living on Polk Street with an office on Market Street. Clane knows him....
An operative at Continental Detective Agency who often works with the Op. A specialist in shadowing someone. The Op calls him, "a little shrimp." Canadian. Rarely talks.more...
An operative at Continental Detective Agency who often works with the Op. Young, just learning the ropes....
The young (in his twenties) son of a wealthy businessman who is making his own fortune in the financial market....
Benny informed the Op that Frederick Grover was the best poker player west of Chicago....
The expert in fingerprints at the police department...
Years ago, Henry Grover had had an argument with him. "A mean cuss," he had a gold claim next to Hennys.more...