Ronald Holtz

Dr. Ronald Holtz was the base doctor on Moon Base Alpha. He discovered Zan Perfonic in Space Case, but was killed by Garth Grisan, who wished to keep the secret from the world.

Space Case
Ronald Holtz was first seen in Space Case, where he was chatting animatedly to Zan Perfonic late in the night. He was overheard by Dashiell Gibson, who was using the bathroom after having a Chicken Parmesan dinner. Dr. Holtz was discussing with Zan about revealing her species, and concluded their meeting with declaring that he would announce it the next morning.

However, in a window of a few hours, Garth Grisan approached Dr. Holtz. Under orders of the military, Garth threatened Dr. Holtz about assaulting his daughter on Earth if Dr. Holtz was to reveal Zan's presence, saying that it would cause lots of distress for Earth.

Soon, Dr. Holtz made a decision to commit suicide by suffocating on the moon's surface to protect his daughter. However, he used a cryptic message to give the other Lunarnauts clues to what happened to him, and those hints were followed by Dashiell and Kira Howard.

Personality
Dr. Holtz was shown to be a jolly man who was very kind to children.