Pepper

Pepper is the tactical officer of the Pluto.

Appearance
Pepper is a tall labrador retriever.

Personality
Pepper is extremely analytical and often chooses reason over feelings.

Backstory
Pepper and Stella trained together.

Season 2
She used to be the tactical officer of the Neptune but requested a transfer when she head Stella became captain.

Stella
Pepper admires Stella and her leadership skills.

Trivia

 * She first appears as a non-enhanced dog in S1E10. Her genetically enhanced design would look too out of place for a background character and that's why she doesn't appear in previous episodes.