Swordsman (II)

Gender: ♂
Brain Patterns taken from: Swordsman (Jacques Duquesne)
Child(ren): Quoi (Sequoia)
Individual of: Cotati
Spouse(s): Mantis (Brandt)

Features
Empyre Handbook 1.FT

Swordsman (V) (CtrEarth2)

Gender: ♂
Member of: Remnants (CtrEarth2)
Universe/Dimension/Timeline: Counter-Earth (II)

Swordsman (VII) (R-921)

Gender: ♂
Member of: Gatherers
Universe/Dimension/Timeline: Reality-921

Sybil Dorn

Gender: ♀
Member of: Brethren
Spouse(s): Thane Ector

Sydren (Lieutenant Sydren)

Gender: ♂
Employed by: S.W.O.R.D.

Beverly Sykes

Gender: ♀

Support
New Warriors (IV) 1 - 4

Sylene

Gender: ♀
Parent(s): Loki (Loki Laufeyson) (R-982)

Features
Thor: Asgard's Avenger 1.FT

Syllie Spider (R-?)

Main
Edge of Spider-Verse (II) 5
Edge of Spider-Verse TPB 1
Spider-Verse TPB: Across the Multiverse 1

S'ym

Gender: ♂
Individual of: Demons
Minion of: Belasco (I) (Limbo2), Darkchild (Illyana Rasputina)

Support
New X-Men (II) • New X-Men Academy X 41
New X-Men TPB: The Quest for Magik - The Complete Collection 1

Features
Essential Official Handbook of the Marvel Universe Update '89 1.FT
The Official Handbook of the Marvel Universe Update '89 7.FT
Wolverine: Weapon X Files 1.FT
Wolverine: Weapon X Files TPB 1.FT

Symbiotes

Empowers: Black Skull (Johann Schmidt) (R-HR)
Individual(s): Agony (Leslie Gesneria), Agony (Gemma Shin), Carnage (Cletus Kasady), Lasher (Ramon Hernandez), Mania (Ani Benton), Phage (Carl Mach), Rascal, Riot (Trevor Cole), Scream (Donna Diego), She-Venom (Anne Weying), Silence (Silence), Venom (Edward Brock)
Subgroup of: Alien Races

Cameo
The New Avengers (I) 34
New Avengers TPB By Brian Michael Bendis: The Complete Collection 3

Features
Spider-Man: Back in Black Handbook 1.FT
Spider-Man: Black and Blue (Magazine) 1.FT
Spider-Man, Peter Parker (HC): Back in Black 1.FT
Spider-Man, Peter Parker TPB: Back in Black 1.FT

Symkaria

Inhabitant(s): Silver Sable (Sylvia Sablinova)

Features
Marvel Atlas 1.FT
Marvel Atlas TPB 1.FT
Marvel Europe TPB 1.FT

Synapse (Emily Guerrero)

Gender: ♀
Individual of: Inhumans (I)
Member of: Avengers Unity Squad

Synch (Everett Thomas)

Created by: Fabian Nicieza, Andy Kubert
Gender: ♂
Member of: Generation X (I)

Features
Generation X (I) 1.FT, 57.FT
Marvel Swimsuit Special 4.FT
The Official Handbook of the Marvel Universe: Book of the Dead 2004 1.FT

Syndicate (I) (R-1610)

Universe/Dimension/Timeline: Reality-1610 (Ultimate)

Features
Ultimate Secrets 1.FT

Syndicate (II)

Member(s): Beetle (Janice Lincoln), Electro (Francine Frye), Lady Octopus (Carolyn Trainer), Scorpia (Elaine Coll), Trapstr, White Rabbit

Syne the Memotaur

Member of: Hex (II)

Micah Synn

Gender: ♂

Features
Marvel Legacy: The 1960s-1990s Handbook TPB 1.FT
Marvel Legacy: The 1980s Handbook 1.FT

Syphon

Member of: Cloud Nine

Jemaine Szardos

Gender: ♀
Alias: Magik (Jemaine Szardos), Amanda Sefton
Parent(s): Margali Szardos

Margali Szardos

Gender: ♀
Child(ren): Jemaine Szardos

Features
All-New Official Handbook of the Marvel Universe A to Z 7.FT