Angel Engine's voice actors are To be confirmed: the supplied game records do not contain a verified cast list. They also do not map performers to characters or identify separate dubbed casts. This missing information does not establish that the game has no voice performances.
Casting evidence available
The Steam record identifies developers and a publisher. Those production credits are not voice-actor credits. They cannot support assigning a studio representative, a community username or a web-series contributor to a game performance.
Game cast versus series cast
Steam confirms a relationship with the original web series, but the research packet does not provide cast continuity between the productions. A performer associated with the series cannot be listed as a game actor without a game-specific credit. Character-to-performer mappings remain To be confirmed until such evidence is available.