1. Start a new game with Abdel. 2. Mouse over the left-side UI and hold down the TAB key to bring up the tooltips. 3. While continuing to hold down the TAB key, move the cursor to the bottom portion of the UI and mouse over the various icons. 4. Tooltips will display a character's name and health instead of the correct tooltip.
If there's only one character, it will show that character's tooltip. In a game with multiple characters, it seems to be defaulting to Imoen regardless of which character is selected.