James Spader's Ultron as an AI voice

Would James Spader's Ultron voice and outlook be appealing for an AI?

James Spader's calm, calculating Ultron delivery sounds alarming as the voice of an AI.

Spader's association with Ultron makes his proposed AI voice sound threatening, despite its calm delivery. The preference concerns how performance shapes expectations of a fictional intelligence. The Simpsons' homicidal smart house supplies a comparison, with its voice attribution corrected from Sean Connery to Pierce Brosnan. No conclusion about the safety of a real AI follows from the casting comparison.