Star Trek homeSkip to main content
SearchGo To Dashboard

Star Trek: Lower Decks | Who Are the Senior Command Crew of the U.S.S. Cerritos?

Everything you need to know about the First Officer, Chief of Security, Chief Medical Officer, and Chief Engineer!

Illustrated banner of the Star Trek: Lower Decks' Bridge crew - Andy Billups, Jack Ransom, Shaxs, and Dr. T'Ana

We might be California-class, but we are the best at what we do.

Captain Carol Freeman

As we head into the Season 3 premiere of Star Trek: Lower Decks on August 25, we’ll be looking at those serving aboard the U.S.S. Cerritos, a California-class starship.

The Lower Deck of the Cerritos is comprised of the "cool, scrappy underdogs of the ship." Through their adventures, we get a look at a side of Starfleet we’ve rarely seen before.

We’ve previously covered the Lower Deckers (Ensigns Beckett Mariner, Brad Boimler, D’Vana Tendi, and Sam Rutherford), as well as Captain Carol Freeman. Now we’re going to look at the command crew — Commander Jack Ransom, Lieutenant Shaxs, Dr. T’Ana, and Lt. Commander Andy Billups.

The Cerritos is on red alert as the bridge crew (Rutherford, Shaxs, Billups, Ransom, and Captain Freeman) reacts to what's ahead of them on the viewscreen in 'A Few Badgeys More'

"A Few Badgeys More"

Commander Jack Ransom

Looks like we'll have to repel them the old-fashioned way. Setting my fists to stun and my kicks to kill.

Jack Ransom

Jack Ransom looks at the holo-imager for FNN in Star Trek: Lower Decks

"Trusted Sources"

Commander Jack Ransom (voiced by Jerry O’Connell) serves aboard the Cerritos as the first officer under Captain Freeman. Despite his propensity for shamelessly flirting with women, sucking up to his superior officers, composing hours of songs on his guitar, and belief in the "classic Jack Ransom peace brokering," Ransom is a strong Starfleet officer who adheres to regulations and procedures.

Ransom often clashes with Ensign Beckett Mariner due to her disregard for Starfleet protocols and direct orders from senior officers, especially Captain Freeman. Once, following a misunderstanding on Gelrak V, Ransom stabbed Mariner to prevent her from impulsively diving headfirst into a combat trial and risking her life and the lives of the entire away team. Despite the risk of being court-martialed, his actions on Gelrak V impressed her. However, it does disturb him that Captain Freeman often forgets when he’s around when she and her daughter Beckett Mariner are on good terms.

While Ransom can be hard on the junior crew, and according to Deanna Troi, "exaggerate [his] confidence in order to mask an ocean of insecurity," he takes great pride in the work of the Bridge crew and has been known on occasion to commend the actions of Ensign Brad Boimler. He went as far as praising Boimler as one of the best officers aboard the Cerritos and recommending his promotion and transfer to the U.S.S. Titan’s Captain Will Riker.

Lieutenant Shaxs

You’re so lucky I’m so spiritually-centered or I’d snap!


Shaxs exits Boimler's new quarters as he waves while holding his Tom Paris souvenir plate and Mirror Universe Archer action figure in 'I Have No Bones Yet I Must Flee'

"I Have No Bones Yet I Must Flee"

Voiced by Fred Tatasciore, the Bajoran Lieutenant Shaxs is the ship’s chief of security. Following his time in the Bajoran Resistance during the Occupation of Bajor and its lingering trauma, Shaxs was protective of his crew, especially those who fell in his bear pack. While unaware of the junior staff’s living quarters, Shaxs believed they’re "all equals" aboard the Cerritos.

Shaxs created a holodeck simulation program to help the crew “learn how to deal with defeat,” and shielded Ensign Sam Rutherford from his return from death. He believed he was sparing the junior officer from the “dark truths about scientific depravity” that would haunt him for the rest of his days. Despite his love for shooting enemies’ warp cores and “full-throat screaming” in anyone’s face, Shaxs found comfort in the simple act of pottery where you can take your "never-ending bonfire of rage and bury it in the clay."

Commander T’Ana, MD

Don't pass out. Nobody's authorized to pass out!

Dr. T’Ana

On Corazonia, an injured and burned Boimler lays on a stretcher surrounded by Dr. T'Ana, T'Lyn, and the ensigns from the away team in 'In the Cradle of Vexilon'

"In the Cradle of Vexilon"

Despite being dismissed by Ensign Fletcher as “just a cat in a coat,” Dr. T’Ana (voiced by Gillian Vigman) is the Cerritos’ Caitian chief medical officer. Don’t judge Dr. T’Ana for her rough exterior and blunt demeanor — Lieutenant Shaxs returns her affections, Captain Freeman calls upon her as a close confidante, and Ensign Tendi toughens up to impress the tough doctor.

While bluntly stating that she thought Ensign Tendi would give up and quit medical, Dr. T’Ana was impressed by Tendi’s tenacity, even after the junior officer broke her arm trying to trick the doctor into getting her physical exam. Not wanting to hold Tendi back in her Starfleet career, Dr. T’Ana transferred her to senior science officer training.

Lt. Commander Andarithio “Andy” Billups

It's time to prove to my mother that I'm more than a royal stud.

Andy Billups

Lieutenant Commander Billups in the engine room of the U.S.S. Cerritos.

"Where Pleasant Fountains Lie"

Lt. Commander Andy Billlups (voiced by Paul Scheer) is the Cerritos’ chief engineering officer. Ensign Sam Rutherford recognizes Billups as a “stone-cold badass” and one of the best engineers in all of Starfleet.

The crown prince of Hysperia, Billups rebuked the throne, as well as his pet dragons, to pursue a career in Starfleet. Despite the Queen’s attempt to pressure her son to take crown, which included faking her own death and blowing up their Monaveen starship, his work on the Cerritos was not a mere phase. According to Billups, the only lady he loves is “two decks tall and pumped full of dilithium.” After witnessing her son in action and in his element, Queen Paolana conceded and finally understood his love of Starfleet. While she won’t be proud until he takes her place on the throne, she admitted that she was satisfied.