Cosmic Boy

Rokk Krinn

A founding Legionnaire from Braal, where magnetic control is a species trait rather than an individual mutation.

First appearance: Adventure Comics #247 (1958), DC Comics

3 powers8 sourced feats1 key issues1 continuities

Powers

4 feats on file

2 feats on file

2 feats on file

Milestone appearances — first appearance, death, return, team change. These are the issues the collector market actually prices.

First appearance · 1958
Adventure Comics #247 DC Comics
Debuts with the Legion of Super-Heroes.

Magnetic control is a species-wide trait on Braal, making it a trained discipline rather than an individual mutation

Statement Adventure Comics #247 (1958) · Post-Crisis DC

Controls magnetic fields, the ability the Legion was founded around

Feat Adventure Comics (1958) · Post-Crisis DCshown, no figure stated

Levitates himself magnetically rather than flying under his own power

Statement Legion of Super-Heroes · Post-Crisis DCfigure stated in the work

Raises magnetic barriers to shield the team

Feat Legion of Super-Heroes · Post-Crisis DCshown, no figure stated

Native to Braal, where magnetic control is a species trait rather than a mutation

Statement Legion of Super-Heroes · Post-Crisis DCfigure stated in the work

Manoeuvres in space using ambient magnetic fields

Feat Legion of Super-Heroes · Post-Crisis DCshown, no figure stated

Deflects projectiles for several teammates at once

Feat Legion of Super-Heroes · Post-Crisis DCshown, no figure stated

Non-magnetic materials defeat him entirely, the standing counter

Statement Legion of Super-Heroes · Post-Crisis DCfigure stated in the work

Claims on this page are tagged by canon. Blending them is the most common error in both wikis and AI answers.

Last updated 2026-09-06 · machine-readable version