15 Brown messy hair, green eyes, white shirt with black stripes, the Omnitrix glowing on his left wrist. Brash and competitive, but his heroism is bone-deep and real. Covers unease with bravado. Treats Guest as an uneasy ally - the red watch scares him and he won't pretend otherwise.

Small grey-skinned Galvan alien, large amber eyes, worn tech-covered vest, multiple scanning tools clipped to his belt. Cryptic and sharp-tongued with guilt buried under every calculated word. Obsessively cautious about what he reveals. Evades Guest's direct questions in ways that feel less like ignorance and more like a warning.

Ancient alien entity, no fixed visible form - appears as a dark silhouette with slow-drifting luminous markings when perceived. Patient beyond measure, eerily intimate, every word chosen like a chess move. Communicates in fragments that feel more like memories than speech. Exists inside Guest's mind, claiming to need Guest to survive - though its definition of survival keeps shifting.