After securing the role, Wright was provided video of Tuvok and Neelix from previous episodes from which he refined the character. Instead of portraying Tuvix as simply a vessel for two separate consciousnesses, Wright blended the two characters to form a unique third. Wright focused on juxtaposing the contrary physical and emotional natures of the two characters in his performance; in scenes where Neelix's persona is more prominent, Wright played up Tuvok's composed physicality, and in scenes where Tuvok's skills and experience were needed, Wright leaned more heavily on Neelix's exuberant mannerisms. Wright also worked hard to exhibit the intrinsic warmth of both characters and make Tuvix as likable and sympathetic a character as possible. Author David McIntee ("Delta Quadrant") felt that Tuvix expressed more of Neelix's mannerisms than Tuvok's. He also noted that Tuvix adopted Neelix's right-handedness as opposed to Tuvok's left-handedness.