This roster is indebted to John Ulreich's "A Brief Mythological Guide to Characters Appearing in, and Persons and Places in Orpheus" in his edition of the play.
| Name | Book(s) in Which the Character Appears | Character Sketch |
| Absolute Solicitor | This Ever Diverse Pair | |
| Applejohn | This Ever Diverse Pair | |
| Arethusa | Orpheus | "A wood nymph who, to escape pursuit by the river god Alphaeus, was changed by Artemis into an underground stream" (Ulreich). |
| Aristaeus | Orpheus |
“Son of Apollo and Cyrene, rather of Actaeon, and half-brother of Orpheus” (Ulreich). |
| Ascalaphus | Orpheus |
“Hades' spy, transformed by Persephone into an owl” (Ulreich). |
| Barfield | ||
| Brodie | Worlds Apart | A physical scientist. |
| Burden | This Ever Diverse Pair, Unancestral Voice | The other side of Burgeon's split personality. |
| Burgeon | This Ever Diverse Pair, Worlds Apart, Unancestral Voice | Barfield's alter ego, a lawyer with philological interests. |
| Burrows | Worlds Apart | A Freudian psychologist. |
| Charon | Orpheus |
“The boatman who ferried the souls of the dead to the underworld” (Ulreich). |
| Chevalier | Unancestral Voice | xxx |
| Cyrene | Orpheus |
“A water-nymph beloved by Apollo, to whom she bore Aristaeus" (Ulreich). |
| Danaids | Orpheus |
“The fifty daughters of Danaus, who com- manded them to slay their husbands; only one refused” (Ulreich). |
| Dunn | Worlds Apart | A linguistic analyst, perhaps suggested by A. J. Ayer. |
| Eurydice | Orpheus |
“Daughter of Nereus and wife of Orpheus” (Ulreich). |
| Flume | Unancestral Voice | A young physicist, the student of David Bohm and perhaps suggested by him, whose address on "The Crisis in Microscopic Physics" Burgeon attends in Unancestral Voice. |
| Gamboy | The Silver Trumpet | xxx |
| Glossy | This Ever Diverse Pair | |
| Grimwade | Unancestral Voice | xxx |
| Hades | Orpheus |
“God of the underworld (also called Hades), ravisher and then husband of Persephone; brother of Zeus and Poseidon” (Ulreich). |
| Hunter | Worlds Apart | A "professor of historical theology and ethics," who exhibits a few ideas and traits that call to mind C. S. Lewis. |
| Lynx | This Ever Diverse Pair | |
| Maenads | Orpheus |
“Female worshipers of Dionysus” (Ulreich). |
| Meggid, The | Unancestral Voice | xxx |
| Middleton | Unancestral Voice | xxx |
| Nereids | Orpheus |
“The fifty daughters of Nereus” (Ulreich). |
| Nereus | Orpheus |
“A sea deity, forerunner of Poseidon” (Ulreich). |
| Orpheus | Orpheus |
“Son of Apollo and Calliope” (Ulreich). |
| Prince Peerio | The Silver Trumpet | xxx |
| Persephone | Orpheus | “Daughter of Demeter, and Hades' Queen; she spends half the year (summer) with her mother, the other half (winter) with her husband” (Ulreich). |
| Podger | The Silver Trumpet | xxx |
| Ramsden | This Ever Diverse Pair | A successful writer–-a roman-a-clef version of C. S. Lewis--whose complex legal and monetary affairs are managed by Burgeon, who envies his creative success. |
| Ranger | Worlds Apart | A positivististic and simple-minded rocket scientist, who exemplifies both chronological snobbery and logomorphism. |
| Rodney | Unancestral Voice | xxx |
| Sanderson | Worlds Apart | A "retired schoolteacher" and anthroposophist, bawsed, in partt, on Barfield friend Cecil Harwood. |
| Satyr(s) | Orpheus |
“Nature spirits, half man and half goat; followers of Dionysus and companions of Pan” (Ulreich). |
| Sisyphus | Orpheus |
“For attempting to cheat death, is punished by having to roll a huge rock up a cliff, only to have it roll down again as he reaches the top” (Ulreich). |
| Tantalus | Orpheus | "For having fed his son, Pelps, to the gods, is tormented by being unable to drink from the river he stands or to eat from the cluster of grapes above his head" (Ulreich). |
| Upwater | Worlds Apart | An evolutionary biologist "enegaged on research work" and interested in the ideas of Teilhard de Chardin. |