When half the Legion's was thrust into the 20th Century by the Emerald Eye, the team held a massive applicant screening. Other noticeable heroes (most unnamed, codenames are assumed) at the tryouts were:
Chlorophyll Kid, Color Kid (a female), Comet Queen, Crystal Kid, Dev‑Em, Fire Lad, Infectious Lass, Insect Queen, Kid Psycho, Night Girl, Polar Boy, Jed Rikane, Splitter (formerly Arm-Fall-Off Boy), Stone Boy (Legionnaires #43)
Many rejected applicants sought solace with other teams including the Workforce. Several, however, decided they were not yet ready for action, and formed their own group: the Legion of Substitute Heroes. Only Polar Boy and Night Girl were fully shown as members. (Legionnaires #49) NOTE: The latter five heroes were named in the Legion Secret Files #1.
After this, Chlorophyll Kid, Color Kid, Infectious Lass and Night Girl were inexplicably depicted as part of a group of small children -- all aspiring young heroes being led on a tour by Chuck Taine. The kids encountered four Legionnaires who related their origin stories. Antennae Boy and Porcupine Pete were also a part of this group of children. (Legends of the Legion #1-4)
The full roster of the Substitute Heroes, and the true age of some of these characters were never clarified.
» FIRST APPEARANCE:
- As individuals: Legionnaires #43 (Dec. 1996).
- As a team: Legionnaires #49 (June 1997)
» FEATURED APPEARANCES:
- Legends of the Legion #1-4
- Legionnaires #43, 49