That would be Ebenezer Scrooge, the miser who employed Bob Cratchit as his clerk.
Tiny Tim is not referred to by any other name, his proper Christian name would be Timothy Cratchit.
He looked upon Tiny Tim Cratchit as the child he would never have. Following his visitations his focus changed to a caring person
The correct word in this case would be Christmas carol.
By raising his salary, even though he came to work later than he was supposed to. "Old" Scrooge would have fired him, but "New" Scrooge has changed his ways.
Scrooge sees what Christmas is like for people that are around him at the time, he also sees Tiny Tim Cratchit and is shocked to hear that he was life limited and would not see another Christmas - Now Scrooge starts to understand the true meaning of Christmas
Mr. Cratchit had gone to fetch Tiny Tim from church on Christmas Day to bring him home to join the family for their holiday celebration. They attended church to celebrate the joy and spirit of Christmas together.
That would be Ebeneezer Scrooge from Charles Dickens' 'A Christmas Carol'.
For many people the movie of The Snowman would be top of their list. A Christmas Carol is another perennial favourite. A Sesame Street Christmas Carol and A Muppets Christmas Carol are two others.
There are over 100 versions of "A Christmas Carol" so you would have to be more specific.
Martha was hiding to surprise her father, Bob Cratchit, as she had walked a long way to be with her family for Christmas. She wanted to see his reaction and bring some joy to their household during the holiday season.
To thank him and wish him a Merry Christmas