Performers active
- A-Go aka "The Mexican Wonder" in Pinheads, Microcephalics
- The Mighty Ajax aka Joseph Milana, aka "King of Swords", aka "Arabian Sword Swallower" in Fire Acts, in Trained Animals, in WORKING ACTS, in Sword Swallowers
- Anna John Budd aka William H. Muldoon, aka Miss Anna-John, aka "Nature's Interrogation", aka "Nature's Greatest Enigma", aka "The Originator" in Half-Man Half-Woman, Half-And-Halfs, Hermaphrodites
- Aurora and Natali aka "Aztecs" in Pinheads, Microcephalics
- Bayrooty Troupe aka Bayrooti Troupe in Acrobats, in Jugglers, in Musical Acts, in Ethnic Curiosities
- Billie in Half-Man Half-Woman, Half-And-Halfs, Hermaphrodites
- Bingo aka "The boy with the ear of an elephant" in FREAKS, in Craniofacial Anomalies
- Ki Ki Blitz aka Ki Ki "The Man Monkey", aka "The Original Haba-Haba Man", aka Harry L. Blitz, aka "The Zulu" in Wild Folk
- Bobby Kork aka "Cherie", aka "A Study In Sex", aka "?", aka "Unknown Sex Family" in Half-Man Half-Woman, Half-And-Halfs, Hermaphrodites
- Alice Bounds, "The Bear Girl" aka Ursa, aka "She-Bear", aka Johanna Bounds (mother), aka "Mama-Bear & Bear-Cub" in FREAKS, in Frog Folk, Turtle Folk, Bear Folk, Serpent Folk, Penguin Folk
- Chet Cain aka C.H. Cain in Tattooed People
- Chang aka "The Pin Head Chinese", aka Chong in Pinheads, Microcephalics
- Charles Rubinstein
- Chevalier Cliquot aka "The World's Greatest Sword Swallower", aka Frederick McLone, aka "The Human Scabbard" in Sword Swallowers
- Cipriano Maghanoy aka "The Philipino Limbless Wonder" in Armless, in Legless, in Limbless
- Myrtle Corbin aka Josephine Myrtle Corbin, aka "Four-Legged Girl", aka Josephine Myrtle Bicknell in FREAKS, in Extra Limbs
- Milly D’Arcy aka Nelly D’Arcy in WORKING ACTS, in Snake Acts
- Delphi "The Girl With The Orange Head" in Pinheads, Microcephalics
- The Doll Family aka The Earles, aka Grace, Harry, Daisy, Tiny Earles, aka "The Tiny Town Review", aka Grace, Tiny, Harry & Daisy Schneider in Little People, Midgets, Dwarves
- Johnny Eck aka John Eckhardt, Jr., aka "The Only Living Half-Boy", aka "King of the Freaks", aka "Nature's Greatest Mistake" in FREAKS, in Legless, in Limbless, in Anomalies
- Happy Jack Eckert in FREAKS, in Unusual Size, in Fat Folk
- Egoes "The Incomparable" aka "The Incomparable", aka "Armless Cartoonist" in Armless, in Limbless
- Eko & Iko aka George and Willie Muse, aka "Ambassadors From Mars", aka "Sheep-Headed Men From Mars" in Wild Folk
- Elizabeth Green "The Stork Woman" aka Koo Koo, The Bird Girl, aka Molina, the Pinhead in FREAKS, in Wild Folk
- Elmer-Thelma in Half-Man Half-Woman, Half-And-Halfs, Hermaphrodites
- Elsia "The Human Paradox and Physical Phenomenon" aka Elsia Baker, aka Elsie Stirk, aka "Two Bodies In One", aka "Nature's Strangest Vagary", aka "P.T. Barnum's Double-Bodied Woman" in Half-Man Half-Woman, Half-And-Halfs, Hermaphrodites
- Elsie-John aka Earnest Heinz in Half-Man Half-Woman, Half-And-Halfs, Hermaphrodites
- Frances "Half Man Half Woman" in Half-Man Half-Woman, Half-And-Halfs, Hermaphrodites
- Francette "Half Man - Half Woman" in Half-Man Half-Woman, Half-And-Halfs, Hermaphrodites
- Freddie Esele aka "Armless Wonder", aka Frank Esele in FREAKS, in Armless, in Limbless
- Freda-Fred Van aka "Double-Bodied Wonder", aka "The World's Most Interesting Physique", aka "AKA Frances Ferrel", aka Fred West, aka Freddie West in Half-Man Half-Woman, Half-And-Halfs, Hermaphrodites
- Delno Fritz aka Delmo Fritz, aka William Sherman Fritz in Fire Acts, in Sword Swallowers
- Gene-Jeanette in Half-Man Half-Woman, Half-And-Halfs, Hermaphrodites
- Girobollo aka "The Human Shark", aka "The World's Champion Drinker" in FEATS, in Regurgitators
- Lucio and Simplicio Godino aka The Samar Twins, aka The Godina Brothers in Conjoined Twins, in Siamese Twins
- The Gondins aka "The Brazilian Gondins", aka Euclides Gondin, aka Robert Gondin, aka Martha Gondin, aka Martha Schwartz in Little People, Midgets, Dwarves, in Magicians
- Gondio and Apexia aka Gondio Rao, aka Gondia and Lakine (Lukshana Bai), aka "The Boy With The Monkey's Head", aka "The Missing Link", aka Godina, aka Gondo, aka "A-Go" [possibly] in FREAKS, in Pinheads, Microcephalics
- Roy Heckler aka Herbert Leroy Heckler in Flea Circus
- William H. Hill aka William "Red" Hill in Daredevils, in Funambulists
- Carrie Holt in FREAKS, in Unusual Size, in Fat Folk
- John Huber aka Jack Huber, aka “Terre Haute’s Armless Phenomenon” in Armless, in Limbless
- Frank B. Hubin
- Robert Huddleston aka The Pony Boy, aka Bob Huddleston in FREAKS, in Odd Extremities, in Camel Girls, Pony Men, Dog Folk
- Jenny Lee, Elvira, and Clayton Snow aka Zippo and Flippo, aka Pipo and Zipo, aka Pip and Flip, aka "Pinheads from Peru", aka Flip and Zipo, aka Pip and Flit in Pinheads, Microcephalics
- Josephine-Joseph aka "Brother And Sister In One Body" in Half-Man Half-Woman, Half-And-Halfs, Hermaphrodites
- Kiko and Sulu aka "PINHEADS FROM ZANZIBAR", aka Zib and Izzit in Pinheads, Microcephalics
- Koo Koo "The Bird Girl" aka Minnie Woolsey, aka Minnie Ha-Ha in FREAKS, in Wild Folk
- Krao aka Krao Farini in FREAKS, in Hairy Folk
- Lady Little aka "The Doll Lady" in Little People, Midgets, Dwarves
- Lala Coolah aka "The Man-Venus", aka "He, She, or It", aka Lalla Coolah, aka La La Koola in Half-Man Half-Woman, Half-And-Halfs, Hermaphrodites
- Frank Lentini aka Francesco A. Lentini, aka "3 Legged Wonder" in FREAKS, in Odd Extremities, in Extra Limbs, in Parasitic Twins
- Leo-Leola "The Human Paradox" aka Homer Tracy in Half-Man Half-Woman, Half-And-Halfs, Hermaphrodites
- Les Himalayas aka Gondio & Apexia in Pinheads, Microcephalics
- Lionette aka "The Lion Girl", aka 'The Lion Face Girl", aka Doris Gutterman, aka Dora Gutterman in Hairy Folk
- Mac Norton aka Claude Louis Delair, aka "The Human Aquarium" in FEATS, in Regurgitators
- Madam Olga aka Jane Barnell, aka Lady Olga, aka Princess Olga, aka Lady Olga Roderick in Bearded Ladies
- Martha Morris aka Margaret Morris, aka "The Armless Wonder" in FREAKS, in Armless, in Limbless
- Mary and Anna aka Mary and Arrita, aka "The Honduran Siamese Twins" in Siamese Twins
- Eddie Masher aka Skeleton Dude in FREAKS, in Human Skeleton, Living Skeleton, Thin Man
- Grace McDaniel aka "The Mule-Faced Woman", aka "World's Ugliest Woman", aka Grace McDaniels [sic] in FREAKS, in Craniofacial Anomalies, in Anomalies
- Paul McWilliams aka Paul "Big Mouth" McWilliams in Strange Talents, in Magicians
- Paul Desmuke aka Judge Desmuke, aka Peter Dismuki, aka "The Armless Wonder" in Armless, in Limbless
- Percilla Bejano aka "The Monkey Girl", aka Percilla Lauther, aka Percilla Roman in FREAKS, in Hairy Folk
- Johann K. Petursson aka "The Icelandic Viking Giant" in FREAKS, in Unusual Size, in Giants
- Piramal & Sami aka Piramel & Sami, aka Piramal & Sami, aka Perumal Sami, aka Peroomal and Samy, aka "Double Bodied Hindoo Enigma", aka "Double Bodied Boy" in FREAKS, in Extra Limbs, in Parasitic Twins
- Prince Elmer aka Elmer E. O'Dell in Little People, Midgets, Dwarves
- Princess Valetta aka Valetta G. Smith in Little People, Midgets, Dwarves
- Princess Wee Wee aka Harriet Elizabeth Williams, aka Princess Weenie Wee, aka "The Animated Chocolate Eclair" in FREAKS, in Unusual Size, in Little People, Midgets, Dwarves
- Prince Randion aka Prince Randian, aka "Armless & Legless Wonder", aka "The Living Torso", aka "Caterpillar Man", aka "Snake Man", aka "World's Greatest Living Wonder", aka "Half-Man", aka "The Hindoo Wonder" in FREAKS, in Armless, in Legless, in Limbless
- Ray "Half Man, Half Woman" in Half-Man Half-Woman, Half-And-Halfs, Hermaphrodites
- Roberta Ray aka Bobbie Ray in Half-Man Half-Woman, Half-And-Halfs, Hermaphrodites
- Rosella aka "P.T. Barnum's Original Double-Bodied Woman" in Half-Man Half-Woman, Half-And-Halfs, Hermaphrodites
- Schlitzie aka Simon Metz, aka Slitzy, aka Schlitze, aka Slitzie, aka "The Last of the Aztecs", aka "The Missing Link" in Pinheads, Microcephalics
- Siah Khan aka "The Iranian Giant", aka Siah Khan Ibn Kashmir Khan in FREAKS, in Giants, in Craniofacial Anomalies
- Su Kong T’ai Djin aka T’ai Djin, aka "The Chinese Werewolf Boy" in Hairy Folk
- Cliff Thompson aka Clifford Marshall Thompson in Giants
- Jeanie Tomaini aka Bernice Smith , aka Strangest Married Couple in FREAKS, in Legless, in Limbless
- The Torp's Loppe Cirkus aka Willy & Else Torp in Flea Circus
- John Williams aka "Alligator-Skin Boy" in FREAKS, in Alligator Skin, Elephant Skin, Armadillo-Skin