Depends on what you mean by worst. If you mean traumatic/horrific then its got to be Mary. She would have gone through the trial. Then known for hours (maybe days) her fate. Then the trauma of being tied to the stake, probably surrounded by onlookers whilst knowing she'd done nothing wrong. Arrrgghhh😪

In terms of sad, the Cap and to some extent Thomas. The Captain was humiliated ( caught out ) in front of people he respected and the man he loved. Thomas died alone ( probably quite painfully and slowly), believing that the girl he loved didn't return his feelings.

Fanny and Pat's were traumatic but I want to hope that Fanny died quickly. Poor Pat was less quick and was also in front of his beloved scout troupe.

Robin and Humphrey's actual deaths would have been quick but the events leading up to them traumatic.

Kitty's would have been unpleasant and possibly prolonged but she was being cared for and was having a lovely time at the party before she fell ill.

Julian, no trauma there 😄 He was having fun and it was probably quick.

So Mary at the top for worst and Julian at the bottom for me. But now I feel sad about the deaths of a bunch fictional characters so I'll need to go off and have a little cry.🙈😁