The Orville: Discovery

The Orville: Discovery is an American teen science fiction comedy-drama television series created by Seth MacFarlane for the streaming service Disney+ and Hulu. It follows a group of young teenage Union Point cadets been in charge of a ship called USS Discovery, an new starship for the Planetary Union's line of exploratory space vessels in the 25th century.

Plot
Some time later, 300 teenage and young adults cadets from Union Point, led by Topa, Lieutenant Commander Bortus's daughter, get enveloped by a powerful energy wave the strands them and their ship, USS Discovery in the galaxy's Delta Quadrant, more than 70,000 light-years from Earth, leaving them enable to contact the Planetary Union.

Main

 * Imani Pullum as Captain Topa, who commands the Discovery, in the Orville, Topa was surgically alter to male shortly after birth, but after feel off about herself, she decided to underwent a procedure to return to female, after that, she became the first female Moclan to entering Union Point.
 * Jeremy Shada as Commander Pierce Mccoy, first officer of the Discovery, he serves under Captain Topa, he was raise at a colony that attack by the Krill, he was the few survivors of the attack as his mother manage to give him to safety, after that, he hold a strong dislike to the Krill. but he dreamed of captaining a ship as a child after being rescue by a Planetary Union ship, he is known for being both level-headed and creative.
 * BJ Tanner as Doctor Marcus Finn, chief medical officer on the Discovery, holding the rank of lieutenant commander. Marcus is a "good kid," with "a great mom and a really great teacher." Like many siblings, Marcus fights frequently with his brother and his mother, but love them, regardless, after entering Union Point, he shown to interest to follow into his mother's footsteps.
 * Ruby Rose Turner as Lieutenant Commander Aka, second Officer of the Discovery, after the Janisi accepted a alliance with the Planetary Union, they sent a group of Janisi to Union Point, Aka was a part of that group and due to coming from a oppressively matriarchal, she having a hard time to understand why men having rights.
 * Isaac Kragten as Lieutenant Seais Ulan, Chief Security Officer of the Discovery, he is from Xelaya, a high-gravity planet that gives him greater-than-human strength in Earth gravity. He can knock down doors and walls, and crush a solid block of titanium or reshape it into a sphere with his bare hands, instead of following his family's footsteps, he went to the military of the Planetary Union.
 * Gaten Matarazzo as Lieutenant Floyd Coleman, helmsman of the Discovery, being inspired by Lieutenant Gordon Malloy, he hope to become the best helmsman in the Planetary Union, due to him being a teenage, he has juvenile sense of humor, but nevertheless possesses the skills needed to thrive aboard this advanced starship. He is a talented, if sometimes reckless pilot capable of navigating the Discovery or any other vessel he may be flying out of danger in situations that might stymie other pilots.
 * Morton Nash as Newton, the Discovery 's science and engineering officer and Marcus's half-brother, under Isaac's suggestion, he ask the Admiralty to let Newton to joined Union Point, during the course of his time with the crew, he comes to observe and understand aspects of human behavior, such as relationships, sarcasm, slang, and practical jokes.
 * Storm Reid as Lieutenant Commander Nydia Pena, Chief Engineering Officer of the Discovery, She and Aka strike up an immediate friendship in the first episode and has earned some of the highest marks in the history of Union Point, due to she came from a culture that produce mechanics for spaceships.
 * Milo Manheim as Aleks/Ensign Doran Parker, navigator of the Discovery, he is notable as a rare individual to visualizing space and geometry in four dimensions as he is a krill in disguise and due to his Krill training, he held the higher level for combat but choose to become a navigator as his way to atone his people's actions.

Recurring

 * Seth MacFarlane as Captain Edward "Ed" Mercer, who commands the Orville.
 * Adrianne Palicki as Commander Kelly Grayson, first officer of the Orville and Ed Mercer's ex-wife.
 * Penny Johnson Jerald as Doctor Claire Finn, chief medical officer on the Orville and the mother of Marcus Finn and Newton.
 * Scott Grimes as Lieutenant Gordon Malloy, the helmsman of the Orville and Mercer's best friend.
 * J. Lee as Lieutenant Commander John LaMarr, the Orville 's chief engineer.
 * Jessica Szohr as Lieutenant Commander Talla Keyali, the Orville's Chief of Security, who replaces Alara Kitan after her resignation in season 2.
 * Mark Jackson as Isaac, the Orville 's science and engineering officer and the father of Marcus Finn and Newton.
 * Peter Macon as Lieutenant Commander Bortus, the second officer aboard the USS Orville and one of the fathers of Topa.
 * Victor Garber as Fleet Admiral Thomas "Tom" Halsey, Mercer's superior and old friend of Grayson's father
 * Chad Coleman as Klyden, Bortus's mate and father of their daughter, Topa.
 * Kai Wener as Ty Finn, the brother of Doctor Marcus Finn and Newton.
 * Giorgia Whigham as Lysella, a barista in Sargus 4 who helps rescue John where public votes determine a person's social status; Lysella learns of the crew's alien origin when she sees Alara's ears and subsequently provides them with understanding of how to rig public support in John's favor, later, she join the Union and become a cadet in Union Point and a part of USS Discovery.
 * Alex Borstein as the voice of the Discovery computer
 * Ron Canada as Admiral Tucker.
 * Kelly Hu as Admiral Ozawa.
 * Rena Owen as Heveena, a Moclan woman.
 * Bruce Boxleitner as Union president Alcuzan.