Reginald Musgrave / Frances Carfax / Bow Appendix / Victor Trevor / Watson / Charles Augustus Milverton / Trevor Sr. / /
Position
author / Clerk The Naval Treaty The Cardboard Box The Engineer / Baskervilles The Copper Beeches The Boscombe Valley Mystery The Stockbroker / Students The Solitary Cyclist / detective / Dying Detective / biographer / butler / missing butler and maid / Interpreter / /