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), 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 (R-1610)

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

Features
Ultimate Secrets 1.FT

Micah Synn

Gender: ♂

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

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