Who Beckett Mariner is in STFC
Beckett Mariner is an epic Command officer in Star Trek Fleet Command, pulled from the animated series Star Trek: Lower Decks. She belongs to the Lower Decks crew group alongside the rest of the USS Cerritos junior staff.
The first thing to know about her is where she does not belong: the captain’s chair. Mariner’s value comes entirely from her officer ability, which raises the attack of your whole bridge. Her captain ability gives no bonus at all, by design, so you build around a real captain and slot Mariner in to push damage.
This guide walks through her canon backstory, what she does in the game, where she earns a seat, how her synergy crew works, and what it costs to rank her up.
Star Trek background
Beckett Mariner Freeman is a Human Starfleet officer from the late 24th century and one of the leads of Star Trek: Lower Decks. She serves aboard the USS Cerritos, a California-class support ship that handles the unglamorous second-contact and supply jobs the flagship crews skip. The show follows her and three other junior Offiziere as they survive the day-to-day grind of Starfleet from the bottom of the org chart.
Her family makes her position awkward. Her mother, Carol Freeman, captains the Cerritos and keeps a close eye on her; her father, Alonzo Freeman, is a Starfleet admiral. Mariner has the talent to climb fast and was marked early as Befehl material, yet she keeps herself at the rank of ensign on purpose. She engineers her own demotions and leans into reckless behavior to avoid the responsibility that senior rank brings. Part of that traces back to the Dominion War, which she served in straight out of the Akademie, and the loss of a friend that left her wary of being in charge.
For all the rule-breaking, she is a capable officer. Mariner has logged time on several Starfleet vessels and a stint on Deep Space 9, and her adventures run from a Klingonisch prison brawl to a blood bond with a Klingon warrior. Her friend Bradward Boimler usually gets dragged into her schemes against his better judgment. That blend of skill and self-sabotage is the whole character: the best officer in the room who refuses to act like it, fiercely loyal to her crew the entire time.
Her role in STFC
Mariner is a combat support officer. Her job on the bridge is to raise the attack of every officer aboard the ship, which puts her on crews built to deal damage rather than mine resources or hold a station.
Because her captain slot is empty, she works best as a bridge officer in the second or third seat, or as a below-decks contributor on crews that lean on officer attack. Seating her as captain throws away the bonus that seat could carry, so always pair her with an officer who has a real captain maneuver.
She is a specialist, not a do-everything pick. If a fight rewards higher officer attack, she has a case for the crew. If it rewards mining speed, protected cargo, or shield strength, look elsewhere.
Beckett Mariner’s abilities
Captain ability: Unfit To Lead
Mariner has no captain maneuver. The ability, aptly named Unfit To Lead, provides no benefit when she is the captain of a ship. As of the latest Daten the captain bonus reads as zero, which matches the joke from the show. Keep the captain seat for someone else and use Mariner for her officer ability instead.
Officer ability: Get It Together!
Her officer ability increases the attack of all officers on the ship. The boost starts small and grows every time you promote her, so the more ranks you invest, the larger the bridge-wide attack bump becomes. Place her on the bridge of a damage-focused crew, since officer abilities only fire from a bridge seat. The flat nature of the boost means it helps any officer attack number on the ship, which is what makes her flexible across different attack crews.
Where Beckett Mariner shines
She earns her place on attack-oriented combat crews. Any setup where more officer attack turns into more damage can use her, whether you are clearing hostiles, grinding faction kills, or fighting other players. The boost applies to the whole bridge, so it stacks well with officers whose own abilities key off attack.
She also anchors a themed Lower Decks crew. If you are collecting the Cerritos officers, Mariner becomes the attack engine that pulls a full Lower Decks bridge together with her crewmates.
For newer players, treat her as a situational pick rather than a backbone officer. Her officer ability is genuinely useful, but early accounts get more from officers whose captain maneuvers also carry weight, since you have fewer crews to spread across. Pick her up for the role she fills and rank her when that role matters to your roster.
How to get Beckett Mariner
Mariner is tied to Star Trek: Lower Decks content, so she tends to appear around themed events and store rotations rather than as a permanent recruit. Availability moves over time, so check the current event calendar and your faction or event stores to see whether her shards are obtainable right now.
Taking her to maximum rank costs 1,800 shards in total, as of the latest data. The shard cost per rank breaks down like this:
| Rang | Shards to promote |
|---|---|
| 1 | 120 |
| 2 | 120 |
| 3 | 240 |
| 4 | 360 |
| 5 | 960 |
The rank 5 step is the heavy one at 960 shards on its own, so plan your collecting with that final tier in mind. If you only want her officer ability working at a basic level, the early ranks are cheap; the cost climbs sharply once you chase the top end.
Synergy crew
Mariner sits in the Lower Decks crew synergy group. Her listed synergy partners are the rest of the Cerritos crowd: Brad Boimler, Abzeichen, D’Vana Tendi, Sam Rutherford, Carol Freeman, Doctor T’Ana, and Alonzo Freeman. If you run a full themed crew, those are the names to look at alongside her.
Her own contribution comes from the officer ability rather than a class-synergy bonus. She carries no Command, Wissenschaft, or Engineering synergy value of her own, so think of her as the attack booster on the bridge rather than a source of class bonuses. Pair her with a strong captain and a third officer that fits your goal, and let Mariner handle the flat attack lift for the whole bridge.
Frequently asked questions
Is Beckett Mariner any good?
She is good in a narrow role. As a bridge officer who raises the attack of your whole officer lineup, she helps damage-focused crews. She is a weak choice as a captain because her captain ability gives no bonus.
Can you use Beckett Mariner as captain?
You can place her in the seat, but you should not. Unfit To Lead provides no captain bonus, so the slot goes to waste. Keep her as a bridge or below-decks officer and let a real captain anchor the ship.
Where do you get Beckett Mariner shards?
Her shards usually come through Lower Decks themed events and store rotations. Because availability changes, check the current events and stores in your game rather than counting on a fixed source.
What crew works with Beckett Mariner?
Build an attack-focused crew with a strong captain and a third officer that suits the fight, then add Mariner for the bridge-wide attack boost. For a themed run, pair her with her Lower Decks synergy partners.
Is Beckett Mariner worth ranking up?
If you run attack crews or you are building a Lower Decks team, the rank-up pays off because her officer ability scales with promotion. If you mostly need captains and economy officers, she can sit lower on your priority list.
The bottom line on Beckett Mariner
Beckett Mariner is a focused officer: an attack booster for the bridge and the centerpiece of a Lower Decks crew. If that fits how you play, she is worth chasing when her shards rotate in. If your roster still lacks reliable captains, spend your shards there first and fold Mariner in once her role earns the slot.
