The High Commander and leader of the extraterrestrial expedition. He poses as a physics professor at Pendelton University and serves as the family provider. Most episodes are named after him.
The culmination of their romantic arc, transitioning from courtship to engaged partnership.
A formal leaseholder dynamic where Mrs. Dubcek asserts property rights and financial obligations over Dick Solomon.
Competitive siblings who frequently clash over authority and household rules.
A paternal dynamic where Dick attempts to mentor Tommy, often clashing with or learning from the boy's human experiences.
Ongoing internal struggle between alien leadership duties and human assimilation.
Employer and assistant with a professional but occasionally strained dynamic.
Mary's gradual emotional opening and eventual acceptance of Dick's romantic pursuit.
Brothers who share domestic responsibilities and occasional misunderstandings.
Indirect romantic and social rivals due to Sally's attraction to Don.
Occasional source of casual advice on human romantic and social conventions.
Explore the full interactive character relationship map of 3rd Rock from the Sun