I have no first-hand knowledge, but this is what I found:
Tom Cruise is 5'7"
Bashir al-Assad is 6' 2½"
Vladimir Putin is 5'5", 5'7", or 5" 9", according to different reports. Some say that he wears elevator shoes.
Alan Ladd was estimated to be between 5' 4" and 5'6". He was one of the shortest actors.
The shortest American president was James Madison, at 5'2" to 5' 4"
People always seem to argue over the height of peewee politicians and celebrities, but tall ones are less controversial.
The tallest were LBJ and Abraham Lincoln, tied at 6'4".
I saw LBJ once in a speech at William Jewell College, when he was VP. I did not measure him, but he certainly was one tall Texan.