|This character exists primarily or exclusively within the Sonic X anime or comic continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
Galaxina is physically similar to Cosmo, as having dark cyan colored hair and wears white and yellow clothing. As well as having a similar physical appearance compared to Cosmo, she has teal features.
As opposed to Cosmo, Galaxina is very smart, sophisticated and down-to-earth. Despite this, she is shown to worry a great deal about Cosmo and their mother, Earthia.
- In the original Japanese version, Galaxina has no name; she was referred to as onee-sama ("big sister") by other members of her clan.