<Li> J. Lee as Lieutenant John LaMarr, the navigator of the Orville . He and Malloy strike up an immediate friendship in the pilot, based on their ironic view that they are both "jerks". </Li> <Li> Mark Jackson as Isaac, the Orville's Science and Engineering Officer . Isaac is a member of the artificial, non-biological race from Kaylon - 1 that views biological lifeforms, including humans, as inferior . Isaac explains to Mercer in the pilot that the Union's Admiralty offered a posting to any Kaylon willing to accept it, as an attempt to initiate relations between the two powers . Isaac accepted the offer because he saw it as a way to study human behavior . During the course of his time with the crew, he comes to observe and understand aspects of human behavior, such as sarcasm, slang, and practical jokes . Isaac perceives his surroundings with his body's internal sensors, and not with the two glowing blue "eyes" on his face, which are purely aesthetic . </Li> <Ul> <Li> Chad Coleman as Klyden, Bortus' mate and father of their child . He first appears at the end of the series' second episode . </Li> <Li> Norm Macdonald as the voice of Yaphit, an amorphous, gelatinous Engineering crew member of the Orville, who in his first few appearances, repeatedly attempts to obtain a date with Dr. Finn, and frequently flirts with other females on the ship . </Li> <Li> Larry Joe Campbell as Lieutenant Commander Steve Newton, Chief Engineer of the Orville . </Li> <Li> Rachael MacFarlane as the voice of the Orville computer . </Li> </Ul> <Li> Chad Coleman as Klyden, Bortus' mate and father of their child . He first appears at the end of the series' second episode . </Li>

Whose voice is the robot on the orville