Puzzler

Real Name: Unknown
First Appearance: America's Best Comics #30 (1949)
Original Publisher: Nedor
Created by: Ruben Moreira

Origin:

A young man is down on his luck though he¹s always been good at solving puzzles. In fact he happens to be walking by a bank when he hears that the vault has been closed by accident and it contains papers that are needed for a multi-million dollar deal. He reckons a safe is just another puzzle and soon he has it open for them. But, they offer him no reward and in fact are all to happy to have him leave due to his rather sorry appearance. He decides, then and there to no longer live the life of the straight and narrow and puts on a green and yellow checker-board costume and commits outrageous crimes. He even sends out riddles to the Black Terror challenging him to solve the crimes and catch him. Which after a few close calls, the Terrors do. The Puzzler also seems to have penchant for bad puns.

Golden Age Appearances: 

America's Best Comics #30

Starlet

Real Name: Selena Brown
First Appearance: Moon Girl Fights Crime #7 (1949)
Original Publisher: E.C.Comics
Created by: Sheldon Moldoff

Starlet becomes Moon Girl

Origin: 

Selena Brown was an orphan girl who grew up in a farm with great fear of the moon. One night, cleaning her attic, she came upon a magic Moon-Jewel necklace which gave her incredible strength. She uses this gifts in a variety of ways that catch the attention of the media and Moon Girl.

Eventually, she winds up saving two hardened criminals from a possibly fatal accident. They, seeing the potential for crime in her, blackmail her with killing her foster parents if she doesn't help them break into a bank. She complies.

When Moon Girl intervenes, they shove her into the bank vault, where she starts suffocating. She is eventually rescued by Moon Girl, who turns out was the girl's cousin all along.

Given the secret identity of Star (called "The Starlet" in her second and final appearance), she unceremoniously joins Moon Girl as her sidekick.

Public Domain Appearances: 

Moon Girl Fights Crime #7-8