Epsilon

Epsilon is an Australian-made robot who monitors Metro City's weather and marine animals. She is an ally of Astro's, and like him, she believes war isn't the only way for humans and robots to get along. She a reimagined version of Photar from the 1980 anime series.

Appearance
Epsilon is a bipedal humanoid robot resembling a woman. She has very light green skin, lime green hair with heavy front bangs, and green eyes. She has a built-in red headband that keeps her hair in place and contains extra sensors.

Epsilon has built-in armor that doubles as her regular attire. She wears a teal bodysuit with matching boots, with purple and white detailing. Her shoulders and sides are protected by ornate shields, and she has a diamond-shaped crystal embedded just below her neck. Epsilon also has built-in jets in her back that function both in air and underwater.

Episodes

 * The Rise of Pluto
 * The Fall of Acheron
 * Escape from Volcano Island
 * Robotonia
 * Journey to Tomorrow
 * Astro Reborn

Story
In the 2003 series, she was a close friend of Astro that could predict the weather. During the rampage of Pluto, Epsilon was one of the targeted robots. Epsilon at first refused to fight. But she was forced to underwater when Pluto found her. Although claiming she has no weakness, Pluto threatened to activate some nearby volcanoes that'll harm the creatures she protects. She was defeated and damaged, but asked Pluto if he had anything to protect.

Epsilon was somehow found and fixed. She was a robot nominee for the Robot of the Year Award. Epsilon helped in rescuing the Camilla Queen ship and its passengers. She along with the other nominees were all awarded.

During the Robotonia incident, she guided Reno and Hannah to Duke Red's ship. She later welcomed Atlas and Pluto.

In Astro Boy: Omega Factor
Epsilon appears as one of the bosses in the Gameboy Advance game Astro Boy: Omega Factor. She is one of the world's strongest robots who served under Shadow, and is fought after Brontus.