President Grant / Devil / Drunk Dave
Eskimo Guide
Confederate Sentry / Medic
Confederate Sentry
Captain William Postell
Matthew Henson
President Lincoln / Confederate Captain
Robert Smalls' Son
Swooning Bombshell Woman
Union Captain
Charles de Gaulle
Postal Worker 1 / Audience Member 1
Patient
Hitler
Confederate Sailor
Dr. Blalock
Robert Smalls' Wife
Bass Reeves
Mae Jemison (Adult)
Seaman James Dorsett (as K. Harrison Sweeney)
Self
Giles
Self / Henry 'Box' Brown
William Tillman
Postal Worker 2 / Audience Member 2
Robert Peary
Josephine Baker (as Nika Williams)
Postman
Black Abolitionist
Benito Mussolini
George Monroe
Nurse
Vivien Thomas / Vanderbilt (VO), Dude Puppet #2
Young Mae Jemison
Mrs. Hater / Operator (VO)
Assitant Marjorie
Norman Rockwell Mother
Robert Smalls
Riley
Jaques Abtey / Ref / Samuel Alexander Smith, White Actor
Jeremy
Otis 'envelope' Evans
Robert Johnson
Dad in Hitler Sketch
Mary Fields
Passerby / Party Guest (uncredited)