THE CASTING:
Ryan Kelley as Ben Tennyson
Galadriel Stineman as Gwen Tennyson
Barry Corbin as Grandpa Max Tennyson
Nathan Keyes as Kevin Levin
NOTABLE CAMEOS:
Graham Phillips as Young Ben Tennyson
Haley Ramm as Young Gwen Tennyson
Lee Majors as Young Grandpa Max Tennyson
OTHER CAMEOS:
Stephen Amell as Oliver Queen/Green Arrow
Grant Gustin as Barry Allen/The Flash
Melissa Benoist as Kara Danvers/Supergirl
DC's Legends of Tomorrow
Johnathon Schaech as Jonah Hex
Joseph David-Jones as Connor Hawke/John Diggle Jr./Green Arrow
Power Rangers Mega Force
Power Rangers Dino Charge