Solarian

Solarian robots are told that only people speaking with a Solarian accent are human.

Solar body lets you infuse the solar mote directly into your body; this may or may not change physical appearance slightly, and design may be changed upon attaining a new solarian level.

Bliss, Pelorat, and Trevize are nearly killed by the Solarian Sarton Bander; but Bliss deflects the transduction at the moment Bander uses it as a weapon, accidentally killing Bander.

When their lives are threatened, Bliss uses her abilities (and the shared intellect of Gaia) to destroy the Solarian who is about to kill them.