So guessing that the new returners are supposed to be
Henry Ford (Car entrepreneur). We saw him at the funeral, he apparently has prosthetic legs.
George William Manby (Fire Extinguisher inventor)
We saw Benjamin Franklin at the Funeral
Murdoch is presumably a doctor but couldn’t find any clue searching it up. Another possibility could be John Murdoch of Rosebank, a famous tobacco lord due to the pile of cigs they’ve been smoking.
Lili too is a bit too vague to know who they are rn. Wikipedia on people named Lili gives probability that they are an actor/actress.
The hug lady’s name was not revealed yet