Robin Williams

Himself

self

Nolan Mack

Teddy Roosevelt

Roger Stillman

Dwight D. Eisenhower

Father Monaghan

Ramon / Lovelace

voice

Dan

Teddy Roosevelt

Lance Clayton

Holden

Maxwell 'Wizard' Wallace

Reverend Frank

Teddy Roosevelt

Ramon / Lovelace

voice

Tom Dobbs

Napoleon Cross

voice

Bob Munro

Gabriel Noone

Paul

Fender

voice

Charlie Boyd / The Priest

uncredited

Pappass

Alan Hakman

Walter Finch

Rainbow Randolph

Seymour Parrish

Dr. Know

voice

Andrew Martin

Jakob

Patch Adams

Chris Nielsen

Sean Maguire

Professor Philip Brainard

Mel / Harry's Character

Dale Putley

Osric

The Professor (as George Spelvin)

Jack Charles Powell

Armand Goldman

Alan Parrish

Genie

uncredited voice

John Jacob Jingleheimer Schmidt

uncredited

Dr. Kosevich

Genie

voice

The Father

Daniel Hillard / Mrs. Euphegenia Doubtfire

Hector

Leslie Zevo

Genie

voice

Timekeeper

voice

Batty Koda

voice

The Kiwi (as Sudy Nim)

voice

Peter Banning

Parry

Mime Class Instructor (as Marty Fromage)

Doctor Cozy Carlisle

Narrator

voice

Dr. Malcolm Sayer

Joey O'Brien

John Keating

King Of The Moon (as Ray D. Tutto)

Narrator

voice

Air Conditioning Salesman

uncredited

Adrian Cronauer

Various Characters

Tommy Wilhelm

Jack Moniker

Jack Dundee

Vladimir Ivanoff

Donald Quinelle

Garp

Popeye

Andy's Grandmother

uncredited