The Doctor    

Officer shards can be obtained from completing the following missions: Cat and Mouse Part 5, Counterpoint, and Lightyears & Echoes Part 10. Also, shards can be gained through the Artifacts Store, Alliance Store, Refinery, Faction Store, and occasionally through the Event Store and Event Rewards.

B'Elanna Torres    

Officer shards can be obtained from completing the following missions: Academy of Paris Part 1 and Part 3, Carried Away, Cat and Mouse Part 1, and Lightyears & Echoes Part 1 and Part 6. Also, shards can be gained through the Artifacts Store, Refinery, Faction Store, and occasionally through the Event Store and Event Rewards.

Captain Janeway    

Officer shards can be obtained from completing the following missions: From Ashes, Guardian Angel Part 2, Queen's Gambit Part 10, and The Long Way Home Part 2. Also, shards can be gained through the Artifacts Store, Refinery, Faction Store, Field Training Milestone Rewards, Archive Mastery Claim, and occasionally through the Event Store and Event Rewards.

Tom Paris    

Officer shards can be obtained from completing the following missions: A Hunter Must Hunt Part 3, Academy of Paris Part 1 and Part 3, Queen's Gambit Part 1, The Adventures of Captain Proton! Part 1, Undercut, and Unique Specimen. Also, shards can be gained through the Artifacts Store, Refinery, Faction Store, Field Training Milestone Rewards, and occasionally through the Event Store and Event Rewards.

Harry Kim    

Officer shards can be obtained from completing the following missions: Community Service, Queen's Gambit Part 5, The Long Way Home Part 3, and Waste Management Part 3. Also, shards can be gained through the Artifacts Store, Refinery, Faction Store, Field Training Milestone Rewards, and occasionally through the Event Store and Event Rewards.

Seven of Nine (Officer)    

Officer shards can be obtained from completing the following missions: Division Part 3, Greater Good Part 10, Holo-Program: Regenerate, The Compass, and The Last Vale Part 2. Also, shards can be gained through the Refinery, Faction Store, and occasionally through the Event Store and Event Rewards. Extra shards can be acquired through the Offers tab.

Neelix    

Officer shards can be obtained from completing the following missions: Division Part 1, Greater Good Part 8, Pick-Up, and The Last Vale Part 3. Also, shards can be gained through the Refinery, Faction Store, and occasionally through the Event Store and Event Rewards.

Chakotay    

Officer shards can be obtained from completing the following missions: Entanglement Part 10 and Silver Scar Part 1. Also, shards can be gained through the Refinery, Faction Store, Artifacts Store, and occasionally through the Event Store and Event Rewards.

Tuvok    

Officer shards can be obtained from completing the following missions: Entanglement Part 9 and The Kim of Infinite Promotion Part 1. Also, shards can be gained through the Refinery, Faction Store, Artifacts Store, and occasionally through the Event Store and Event Rewards.