Autograph ID help needed,, probably non sports
 

Just bought a great vintage autograph book and there are four autographs in it that I cannot ID. The book is all non sports except for one Joe D.
Any help is greatly appreciated.

Number 3 is Jackie Cooper of "Little Rascal's fame. He also played Perry White in the 'Superman' movies staring Christopher Reeves along with many other roles.

The last one might be Bobby Brown. I'm pretty sure he was a trombonist and or sax player.

...2nd photo is Cary Grant

Thanks for your help guys and especially Adam for Cary Grant. An unexpected bonus in this autograph book.

I just figured out the last one, Bob Burns , nicknamed Bazooka.
Burns played a novelty musical instrument of his own invention, which he called a "bazooka".
Thanks again for all your help.

Hey Richard, did you figure out the first one? Was wondering if it was Lana Turner?

Mike,
I had not figured that one out but I just compared this first sig. to some exemplars and you are right! Lana Turner it is.
Thanks so much.