Religion: repentant alien
Alter Ego: Myke-4 Astor
First Appearance: Adventure Comics (vol. 1) #355 (Apr. 1967): "The War of the Legions!"
Super? (Has Super Powers/Special Abilities/Technology): Yes
Number of Appearances: 7
Note: former villain; joined Legion during 5-year gap
Echo's super-power is sound manipulation.
Echo was first mentioned as Legion of Super-Heroes member in Legion of Super-Heroes (vol. 4) #28 (Apr. 1992).
Suggested links for further research about this character and the character's religious affiliation: