Trivia Quiz #44: Famous First Words

Pretty obvious format here: I give you the first words of the character, you have to name him or her.  Note: I am excluding cover and splash page statements here:

1. "I've found it!  The legendary city of Caramanga!"

2. "Well, here goes experiment #145!"

3. "Lead never hurt a wooden leg!"

4. "It is the first time I have found it necessary to give the signal!"

5. "Huh?  What?  Go 'way!  I wanna sleep! Lemme be!"

(Update: Corrected the quote on #5 per commenter Boosterrific)