Mike Nelson is a fictional character from the television series Mystery Science Theater 3000 (MST3K). He is portrayed by actor Michael J. Nelson and serves as the show's host during its later seasons. Mike is known for his witty commentary and humorous interactions with the movie monsters and robots aboard the spaceship Satellite of Love. In the series, Mike and his robot companions, Crow T. Robot and Tom Servo, watch and critique B-movies, providing comedic commentary throughout. The character of Mike Nelson became popular for his relatable personality and quick humor, contributing to the show's cult following and influence in the realm of comedy and film critique.