By the way, Shatner’s reaction is pretty extreme and classless. Though I personally only reserve line readings as solely a last resort tactic, most of the actors I’ve worked with in the past not only don’t mind line readings, they ask for it. Then again I think you have to prove yourself over time directing actors and earning their trust before they feel comfortable enough to trust your opinions.
Look, one of the most difficult challenges in voice over is the dreaded superfast legal read. It could make otherwise sane, mature, grown ass adults lose their friggin’ minds.