Mr. Turner

What we know

Butler at Wachterhaus (Session 14 @ 01:23:39)
Admitted party on Saturno's invitation; offered to take coats (Session 14 @ 01:23:39)
Served wine goblets on tray during reception (Session 14 @ 01:32:59)
Guided party out at end of dinner (Session 14 @ 02:53:40)
Admitted urgent late-night party visit; Fiona entertaining guest (Session 16 @ 20:39)
Sildir shoved past to reach Fiona; Turner trusted party with her care (Persuasion 20) (Session 16 @ 45:13)
Evacuated with kitchen staff through window during assassin siege (Session 16 @ 44:11)

Front vestibule of Wachterhaus during Session 14 dinner (Session 14 @ 01:23:39).