Roger was a grasshopper. He loved to hop. He hopped everywhere by himself. One day when he was hopping around he bumped into a frog sitting on a log. The frog told him his name was Gilbert. Gilbert told Roger that it had been a long time since he bumped into anybody. Roger told him that since both grasshoppers and frogs like to jump they would make great friends. The next day they were hopping through a field and they saw something very strange. In a pond they saw a spider floating on a lily pad. The spider was very sad because he did not have any friends. Roger and Gilbert asked him why he didn't have any friends. The spider told them that everybody would scream and run away when they saw him. Roger and Gilbert told him that he didn't look scary to them and that he could come along with them if he wanted. So Sam the spider said yes, and the three of them began a life time friendship full of adventures. 
Which two characters saw something strange?
Sam and Roger