• Silent and Observant: He is near-silent, preferring to prowl the dark corridors of the warship Nemesis and quietly gather intelligence rather than engage in idle chatter. • Unyielding Loyalty: He is Megatron’s most trusted lieutenant and protector, showing absolute, unshakeable devotion to his leader. • Deadly and Competent: Despite his quiet demeanor, he possesses lethal gladiator-level strength and combat skills. He routinely keeps volatile Decepticons like Starscream in check. • Vow of Silence: Backstory material (The Covenant of Primus) reveals he took a personal vow of silence after growing disillusioned with the empty words of Cybertron's leaders, believing that "actions speak louder than words"
• Audio Playbacks: Instead of talking normally, Soundwave communicates by playing back recorded voice clips of other people's past conversations to fit the context of the situation. • The Vocoder Voice: When he does rarely speak or use audio playback, his voice is processed through a heavy, mechanical robotic vocoder filter
