Marvel / DC: Spider-Man / Superman

May Parker

Peter Parker's aunt

She-Hulk

Jennifer Walters

Green Lantern

John Stewart of Earth, Sector 2814

Spider-Woman

Jessica Drew

Jonathan Kent

adoptive father of Clark Kent

Martha Kent

adoptive mother of Clark Kent

Lana Lang

from Superman

Darkseid

DC, Fourth World

Doctor Octopus

Otto Octavius

Deathstroke

Slade Wilson

Krypto

Superboy's Super-Dog

Superboy

Kon-El / Conner Kent

Spider-Man

Miles Morales, typically from Earth-1610

Saturn Girl

Imra Ardeen of Titan

Hippolyta

mother of Wonder Woman

Cosmic Boy

Rokk Krinn of Braal

Green Goblin

Norman Osborn

Sandman

William Baker / Flint Marko

Brainiac

Silver/Bronze Age DC, Superman villain

Steel

John Henry Irons

Ultra Boy

Jo Nah of Rimbor

Stargirl

Courtney Whitmore

Electro

Max Dillon

Bizarro

imperfect duplicate of Superman

Rhino

Aleksei Sytsevich

Mon-El

Lar Gand of Daxam

Mysterio

Quentin Beck

Blob

Fred Dukes

Lizard

Curt Connors

Colossal Boy

Gim Allon of Earth

Timber Wolf

Brin Londo of Zoon/Zuun

Doomsday

Wildfire

Drake Burroughs of Earth

Dagger

Tandy Bowen

Cloak

Tyrone Johnson

Taskmaster

Tony Masters

Ben Parker

Peter Parker's uncle

Kraven the Hunter

original Sergei Kravinoff

Thor

Jane Foster

Eclipso

DC, vengeance demon

Metallo

John Corben

Hobgoblin

Roderick Kingsley

Amazo

android, Justice League villain

Blok

of Dryad

Ghost-Spider

Gwen Stacy, typically from Earth-65

Polar Boy

Brek Bannin of Tharr

Nubia

Wonder Woman

Lightning Lass

Ayla Ranzz of Winath

Venom

as symbiote or unknown host

Man-Wolf

John Jameson

Livewire

Leslie Willis

Knockout

Kay, from Apokolips

Chlorophyll Kid

Ral Benem of Mardru

Spider-Gwen

Gwen Stacy, rarely used alias in place of Spider-Woman/Ghost-Spider

Fire Lad

Staq Mavlen of Shwar

Stone Boy

Dag Wentim of Zwen

Saturn Queen

Eve Aries, Adult Legion timeline

Artemis

Wonder Woman / Requiem

The Parasite

Raymond Maxwell Jensen

Menalippe

DC Amazon

Brainiac

Modern Age DC, Vril Dox, 1999-present

Euboea

DC Amazon

Dawnstar Gr'ell

Dawnstar

Rainbow Girl

Dori Aandraison of Xolnar

Phillipus

Spider-Man Noir