Alias








Cosmic Boy

Cosmic Kid

Polestar


Nick Name
|
Civilian ID
Rokk Krinn
Occupation

Legionnaire

Professional Athlete


Legal Status
Citizen of the United Planets without a criminal record.
Nation or Planet of Origin
Braal
Group Affiliation
Legion of Super-Heroes
Base of Operations
United Planets Space of the 31st Century
Height
5' 7"
Weight
145 lbs.
Eye Color
Blue
Hair Color
Black
Known Powers

Biologically typical Braalian possessing powers of magnetism enabling an ability to attract, repel or cause stress in magnetic substances and grant a limited ability to fly.


Exceptional athlete with leadership skills.


Accessories

Legion Flight Ring: Two-way communication device worn on the finger enabling the wearer to fly and disrupt electronic tracking systems.


Common Enemies
Domain
Regularly Appearing

Adventure Comics

Legion of Super- Heroes Vol. 1, 2, 3, 4, 5, 6, & 7

Superboy and the Legion of Super-Heroes


First Appearance
Adventure Comics #247 (April, 1958)
Creator
Otto Binder & Al Plastino
Origin

Having highly developed magnetic skills at an early age Rokk Krinn became Braal's greatest professional MagnoBall player, enabling him to support his impoverished family. His many fans nicknamed him "Cosmic Boy," a title he continues to use with pride.


On a galactic MagnoBall promotional tour, Krinn, along with Imra Ardeen (Saturn Girl) and Garth Ranzz (Lightning Lad), prevented the assassination of interplanetary entrepreneur R.J. Brande. Impressed by the teens' bravery, the industrialist convinced them to form the Legion of Super Heroes.


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Superman