Not much is known about the planet Zarko, or its location, the only recorded interaction between Earth and Zarko happening in 1948. It is home of the Zarkons a peaceful alien race who became interested in the planet Earth the late 1940s. They brought heroine Sun Girl and criminal Peanuts McCoy to their planet to offer them the secret of world peace. However, they soon recounted their offer and sent them home when the pair were unable to stop from fighting before king Brfsk.
To date there have been no other recorded encounters with the planet Zarko and its people.
- Appearances of Zarko
- Minor Appearances of Zarko
- Media Zarko was Mentioned in
- Location Gallery: Zarko
- Images related to Zarko
- Marvel Staff members who were born in Zarko