Board Thread:Questions and Answers/@comment-28096636-20170813022819/@comment-918732-20171101143816

That is correct! The Challs found and adopted Cosmo in, and Cosmo's alien owner came and took him back in.

The Seinfeild character is Cosmo Kramer, the golden-age DC character is Cosmo, the Phantom of Disguise, and the Archie Comics character is.