Megalyn EchikunwokeMari Jiwe McCabe / Vixen (voice) Grant GustinBarry Allen / The Flash (voice) Stephen AmellOliver Queen / Arrow (voice) Carlos ValdesCisco Ramon (voice) Emily Bett RickardsFelicity Smoak (voice) Katie CassidyLaurel Lance / Black Canary (voice) Sean Patrick ThomasProfessor Macalester (voice) Brandon RouthThe Atom (voice) Anika Noni RoseKuasa (voice) James TuckerDirector / Supervising Producer Brian Ford SullivanWriter Christopher D. LozinskiEditor Blake NeelyOriginal Music Composer 
