|Mother:||Amy Aster, missing, presumed dead|
|Father:||Lee Aster, missing, presumed dead|
|Relatives:|| Jeremy Aster (cousin)|
Ronald Aster (uncle, deceased)
Marla Aster (aunt, deceased)
Helen Aster (grandmother)
|First appearance:||"Dream a Little Dream of Me"|
|Last appearance:||"Dream a Little Dream of Me"|
|For information relating to Corey Aster in Star Trek fanon, see Corey Aster.|
Weeks later, Counselor Daniel Radke took Corey as one of his patients at Starfleet Medical in Chicago, where they talked about his parents. The discussions with Helen and Corey led Radke to pursue Corey's apparent extrasensory perception abilities, whereby he could pull Borg drones into his dreams.
While monitoring these abilities, Radke discovered Lee and Amy Aster were still alive but assimilated at the Battle of Wolf 359. The temporal anomaly the Borg used to escape the cube's destruction had remnants in Earth's orbit, triggering Corey's abilities to communicate.
Helen Aster pushed for Starfleet Medical to block Corey's abilities, which lead counselor Richard Whitby made Myra Elbrey perform after Radke objected. The "walls" were mostly successful, but, with the pressure between Helen and Radke, the latter accepted assignment aboard the USS Prospect and dropped Corey as a patient. (Star Trek: The Cantabrian Expeditions: "Dream a Little Dream of Me")
- It's not clear if Helen or Jeremy Aster were patients as well.
Months later, after an embarrassing outbreak in class, Corey went into a forest preserve to clear his mind, where three locals confronted him about a prank he pulled. They attacked him.
Jeremy Aster, Jenna McFarland and Jason Munoz enlisted Ro's help to search for Corey. Ro saved Corey from a phaser blast, the others stopping the locals from causing Corey or them any further problems. (Star Trek: The Cantabrian Expeditions: "Dream a Little Dream of Me")
Corey Aster saw the Borg attack on Farpoint Station moments before it occurred. Elbrey contacted Radke, worried the "walls" in Aster's mind were failing. They both agreed to let them fall. (Star Trek: The Cantabrian Expeditions: "Dream a Little Dream of Me")
After the battle with the Archein and destruction of the Klingon Bird-of-Prey R'Kag, Aster was taken to the Romulan medical facility on Unroth III. There, they hoped to extract further clairvoyant information from Aster, but an undercover Special Operations team infiltrated Romulan space. Daniel Radke, disguised as Romulan Tal Shiar agent Tovath, attempted to halt the Romulan experiments, taking the final drastic action of kidnapping Aster and returning to Federation space. Once there, the USS Helena took custody of Aster.
In the dream reality Aster was in during his coma, he could not reach Ro. After facing danger head-on, he and Ro were reunited in the dream state on Risa. (Star Trek: The Cantabrian Expeditions: "Dream a Little Dream of Me")
- The 2384 section takes place between Star Trek: Odyssey episode "Iliad" and Star Trek: The Helena Chronicles episode "Sanctuary Lost."
- Corey Aster is a character owned by the creators of Star Trek: Hidden Frontier and its associated productions. No infringement was intended in using these characters as "shout out" to the series by the Star Trek: The Cantabrian Expeditions author.