Semi-colons allows multi-crew search
(i.e. "data;spock")
Tiers and comments come from /u/Automaton_2000's and /u/idoliside's work, with their permission.

Crew List

Tier 1

Indulgent Seven
2
Locutus of Borg
3
Captive Bashir
2
Fugitive Spock
1

Tier 2

Dr. Pollard
2
Ishan Chaye Sisko
Laborer Kirk
1
Merry Men Troi
1
Mycelial Culber
1
New Eden Owosekun
1
Picard and Number One
1
Science Officer Spock
1
Tactical Officer Neelix
The Caretaker
1
Tribble Herder Scotty
1
Wrathful Kirk
1
Fugitive Burnham
Jodmos
2
Kaminar Saru
2
Keyla Detmer
1
Roman Captive Kirk
Runaway Po
2

Tier 3

Ba'ul
Bridge Officer Number One
Control Leland
Dark Empath Troi
Determined Janeway
2
Fury Kes
Gladiator Spock
1
Honored Owosekun
1
Leucon
1
New Eden Pike
Pining Vina
Q as "God"
Queen Po
2
Quinn
Saboteur Garak
1
Seeking Spock
1
Timekeeper Tenavik
Torpedo Surgeon McCoy
1
Twilight T'Pol
1
Vice Admiral Janeway
1
Captain Lucero
Data Q
Dejaren
Desert T'Pol
1
Desperate Riker
1
Dress Uniform Bashir
2
Indignant Seven
1
Mirror Burnham
Riker Q

Tier 4

Amanda Rogers
Annika Hansen Seven
Armus
1
Bartender Guinan
1
Bounty Hunter Mudd
Captain Beverly Picard
1
Chef Riker
1
Commander Ari bn Bem
1
Conditioned La Forge
Decoy Kira
Delta Flyer Torres
Dr. Katherine Pulaski
1
Evolved Janeway
Garth of Izar
1
Ishara Yar
1
Kahless the Unforgettable
1
Krenim Guest Paris
1
Loken
1
Lt. Commander Icheb
2
Lt. Commander Uhura
Mountain Climber Mayweather
Rescue Team Uhura
Resilient Tuvok
1
Rura Penthe Commandant
1
Scrooge Data
White Rabbit
Grathon Tolar
Jannar
2
Scared Scotty
1
Test Pilot Archer
1
The Clown

Tier 5

Admiral Maxwell Forrest
1
Admiral Patrick
1
Bartender Tuvok
1
Beloved Annorax
Captain Harry Kim
Doctor Ann Mulhall
Dr. 'Bones' McCoy
1
Galaxy Gallivanting Vash
Grateful Lwaxana Troi
1
Imprinted Archer
Jett Reno
2
Leah Brahms
Little John Riker
1
Lucille Davenport
Navaar
Nomad
Q2
Redjac Jaris
1
Safecracker Nog
1
Talas
Buck Bokai
2
Christine Chapel
2
EV Suit Chekov
Priestess Siranna
Young T'Pau
1
Zora

Tier 6

Chancellor Martok
2
Desert Archer
Flotter
Fungal Entity May
Kamala
Mirror Ellen Landry
Returning Craft
1
The Bashirs
Thrax
2
Trevis
Usurper Lorca
Miss Q
Obrist
Siranna
Torchbearer Tyler

Tier 7

Compromised Airiam
1
Protomorphosis Riker
Aleek-Om
1
Ensign Picard
Evil Kirk
Mission Specialist Lefler
1
Prison Break Lorca
Tholian Prisoner
Vosk

Tier 8

Belle Q
Cadet First Class Locarno
Colonel Q
1
Human Torres
1
Natima Lang
2
Colonel Worf
1
Dr. Leonard McCoy
1
Nexus Guinan
Resolute Chakotay
Tuvix
1

Tier 9

Acting Captain Jellico
1
Diversion Yates
Tourist Tucker
UFP President Ra-ghoratreii
1
Arandis
1
Doctor Paul Stubbs
1
Dress Uniform Beverly Crusher
1
Lucien
Q Junior
Sulu of the Body
1
Taresian Kim
The Duras Sisters
Thot Gor
1
Zahl Ambassador
1

Tier 10

Frederick La Rouque
Helmsman Wyatt
Lenara Kahn
Lt. JG Palmer
Maras
One Zero Zero One
Vargas
1
Commander Shelby
Fierce Guinan
Lt. Ilia
One Zero
Rigel VII Vina
1
Saowin
Solbor
Transporter Chief Rand
Zero One