My concern isn't who owns the character that's whispering, but which of my characters they are whispering to. Let's say I'm DMing in a game with a user named Alice, who has the character Bob. Now, she's in a room with two of my NPCs, Charlie and Dan. We'll say Charlie and Dan don't like each other and information one receives in-character would not be favourable for the other to receive, so a mixup is undesirable. I then get this whisper: (From Bob): I think he's looking at you funny. Maybe you should talk to him about it. Was Bob whispering Charlie or Dan? In this case, it's possible to ask the player to emote, if I'm the DM. But here's another scenario where this problem has come up: In a game I'm in, we have our players, who have their characters. But one person, me, handles their character sheets for them, and we would like to keep it this way. So I have all of their characters in my dropdown, but I don't play them. A lot of whispering goes on in this campaign though, and I get to see the whispers for all of their characters. But I don't know which character is receiving the whisper; if it's any of the other player characters, I should ignore the whisper, but if it's my own characters, I should answer the whisper.