President James Garfield

Michael Shannon

Charles Guiteau

Matthew Macfadyen

Chester A. Arthur

Nick Offerman

James Blaine

Bradley Whitford

Roscoe Conkling

Shea Whigham

Crete Garfield

Betty Gilpin

Irvin Garfield

Alfie Tempest

Abram Garfield(as Anders Grundberg)

Anders Grundberg

Jim Garfield Jr.

Dylan Hughes

Harry Garfield

Jack Alldridge

Tom Platt

Andrew Hefler

Levi Morton

David Nykl

Joe Brown

Archie Fisher

Mollie Garfield

Laura Marcus

Kate Sprague

Tuppence Middleton

Frederick Douglass

Vondie Curtis-Hall

Franny Scoville

Paula Malcomson

Blanche Bruce

Barry Shabaka Henley

Grier

Dominic Applewhite

Loeffler

Nicholas Woodeson

Foster

Daniel Gosling

Dr. Susan Edson

Christine Grace Szarkó

Chairman Hoar

Stuart Milligan

Desk Matron

Mary Angiolillo

Alabama Man

Roy McCrerey

Arkansas Man

Andrew Van Wilpe

Connecticut Man

Henry Fisher

Indiana Man

Steve Miner

Iowa Man

Roderick Hill

Massachusetts Man

Damian Odess-Gillett

Pennsylvania Man

Randall Scott Williams

Virginia Man(as Jake Buckner)

Jake Bernard Buckner

Wisconsin Man

Owen Good

Cub Reporter

Julian Krenn

Illinois Man

Jaimie Wilson

Illinois Man

Jamie Wilson

NY Reporter

Timothy Otis

Robert Todd Lincoln

Kyle Soller

John Sherman

Alistair Petrie

Ulysses Grant

Wayne Brett