WARNING: Spoilers are unmarked.
- Casper telling Kat the story of how he died. Ghosts gradually lose their memories of their lives, so it's particularly sad that Casper, who may have been dead for quite a long time, once again recalls his final days as a human so vividly. It becomes a even bigger Tear Jerker when Casper comes to the end of his story, explaining that his Unfinished Business was looking after his father, who passed on peacefully, leaving Casper in the human world for all eternity.Kat: What's it like to die?Casper: [after a pause] Like... being born. Only backwards. I remember, I didn't go where I was supposed to go. I just stayed behind, so my dad wouldn't be lonely.
- Just the entire monologue of Casper remembering how he died. It starts out as a happy memory, with him fondly explaining it, even lightly laughing once or twice, but then he gets quieter as he remembers what it finally leads up to. By the time he's finished, you can see tears in his eyes.Casper: I begged and begged my dad to get me this sled. And he acted like I couldn't even have it, 'cause I didn't know how to ride it. Then one morning, I came down for breakfast, and there it was, just for me! For no reason at all. I took it out... went sledding all day... My dad said, "That's enough," but I couldn't stop, I was having so much fun! It got late... got dark... got cold... and I got sick. Dad got sad...
- Just the entire monologue of Casper remembering how he died. It starts out as a happy memory, with him fondly explaining it, even lightly laughing once or twice, but then he gets quieter as he remembers what it finally leads up to. By the time he's finished, you can see tears in his eyes.
- The fact Casper's father spent the rest of his days to restore his son to life, only to be institutionalized for saying Casper's ghost still haunted their home.
- James and his quest to reunite with his deceased wife's spirit. He does his best to be a good father for Kat's sake, but Amelia's death left him so broken that he's been dragging his daughter all over the country just for the chance to see his wife again.
- James and Amelia's brief reunion at the end, accompanied by James Horner's beautiful and tear-jerking "One Last Wish".
- And as per the basic premise of the character's misadventures, lonely and dejected Casper spends most of the first act trying desperately to connect with anyone he can even get a chance to talk to and failing due to their frightened reaction to his being a ghost.