Aquaman by Lou Russo and 60+ villains, Black Manta, Ocean Master, etc

Aquaman and...

Creature King (Showcase #32)
Starro
Fire Troll
Krakor
Malignant Amoeba
2 Headed Creature (Aquaman #20 - the only Aquaman comic I had as a kid!)
Amoeba-Man (Wonder Woman)
Iceberg Head (Hostess Ad)
Slime Creature (Aquaman #56)
Attucka
Shark
Sea-Thief
Sreng
Sunburst
King Shark
Devil Fish (Legion of SH)
King Shark
Shell-Back Man
Stellor
Aquabeast
Thanatos
Supreme One
Oceanus
Huntress
Scavenger
Marine Marauder l
Marine Marauder ll
Ocean Master
Fisherman
Black Manta
Human Flying Fish
Captain Demo
Cutlass Charlie
Dagon
Lisa Morel
V’Lana
Slud-Jack (Hostess ad)
Leron
Narkran
Mongo
Professor Polloy
Seaquake
Ragnar
Quisp
Wackyman
O.G.R.E. Soldier
Thesily
Doctor Deering
Torpedo Man
Magneto
Claw
Doctor Starbuck
Aliena
Naeco
Krutz (Nazi)
Master Sargasso
King Neptune
Eel
Manta Man (Hostess ad)
Electric Man
Karla
Un-Thing