Chills Sans
Phase 1-2
Theme 1: Chilled to the Bone
Theme 2: Cold Conundrum
AU: Frosttale
Paralysis Sans
Phase 1-2
Theme 1: Paralyzed
Theme 2: Nightmare
AU: Undertale (N/A)
Lostplates/Javatale Sans
Phase 1-3
Theme 1: Pain & Peril
Theme 2: Brutalovania
Theme 3: Prime Lethality
AU: Lostplates/Javatale
Sans Xeno
Phase 1-3 + Secret
Theme 1: Hidden
Theme 2: Shadowed Retribution
Theme 3: No Escape
Secret Theme: Death's Grasp
AU: Undertale (N/A)
Smiler Sans
Phase 1
Theme 1: Entity Encounter
AU: Undertale (N/A)
Underlab Sans
Phases 1-3
Theme 1: Secrecy at Best
Theme 2: Entity Crisis
Theme 3: True Determination
AU: Underlab
Void Sans
Phase 1-3
Theme 1: The Void Walker
Theme 2: Hidden Underneath
Theme 3: True God
AU: Unknown
Toonshow Sans
Phases 1-2
Theme 1: Cartoon Chaos
Theme 2: The Real Deal
AU: Undertale (N/A)
Some souls.
Soul 1 belongs to Void Sans
Soul 2 belongs to Paralysis Sans
Just for the funny.
The Java Time Trio
Members:
Javatale/Lostplates Sans
Javaswap Papyrus
Javashift Chara
Phases 1-3
Theme 1: No Longer Periled
Theme 2: The Hacking Continues
Theme 3: Never Ending Pain
AU(s): Javatale, Javaswap, Javashift
One Left Sans from Saster's animatic "Undertale: Call of the Void" Sans Fight Phase 3.
Dead-Eye
Phases 1-3
Theme 1: A True Western Dual
Theme 2: Trapped Within
Theme 3: Still Worse Than Ever
AU: N/A
Game: The Edge of Sanctum
The Past Times Trio
Members:
TSCA!Dust Sans
FalseTruth! Sans
Agony!Dust Sans
Phases 1-3
Theme 1: Killers No More
Theme 2: Never Ending Reset
Theme 3: One Last Game
AU(s): TSCA!Dusttale, Undertale: The False Truth, Agonytale