Johnny Dangerously

Johnny Dangerously

Michael Keaton

Vermin

Joe Piscopo

Lil

Marilu Henner

Mom

Maureen Stapleton

Dundee

Peter Boyle

Tommy

Griffin Dunne

Sally

Glynnis O'Connor

The Pope

Dom DeLuise

Maroni

Richard Dimitri

Burr

Danny DeVito

Pat

Ron Carey

Vendor

Ray Walston

Arthur

Dick Butkus

Young Johnny

Byron Thames

Cleaning Lady

Sudie Bond

Desk Sergeant

Alan Hale Jr.

Charley

Scott Thomson

Dr. Magnus

Carl Gottlieb

Dr. Zillman

Neal Israel

Dutch

Mark Jantzen

Warden

Hal Riddle

Vito

Mike Bacarella

Manny

Gary Watkins

Mayor

Hank Garrett

Tony Scarano

Leonard Termo

Young Tommy

Troy Slaten

Boy in Suit

Alexander Hertzberg

Young Vermin

Georg Olden

Mrs. Capone

Cynthia Szigeti

Girl on Steps

Elizabeth Arlen

Woman

Doris Grossman

Prisoner

Richard Warwick

Prisoner

Mike Finneran

Prisoner

Paul B. Brice

Prisoner

Will Seltzer

Prisoner

Dick Balduzzi

Prisoner

Gordon Zimmerman

Blond Girl

Katie La Bourdette

Reporter Duffy

Norman Steinberg

Henchman

Frank Slaten

Photographer

Dean R. Miller

Porter

Edward C. Short

Woman

Shelley Pogoda

Reporter Diering

Jerome Michaels

Hood

Russell Forte

Priest

Jack Nance

Chorus Girl

Joy Michael

Judge

Rick Rosenthal

Mrs. Zimmer

Paula Dell

Policeman

Harvey Parry

T-Shirt Vendor

Jeffrey Weissman

Prisoner Rabbi

Richard A. Roth

Governor

Chuck Hicks

M.C.

Bob Eubanks

Girl

Claudia Kim

Female Butler

Trisha Long

Man

Mert Rich

Maroni's Building Planner (uncredited)

Vincent Schiavelli

Delivery Man (uncredited)

Taylor Negron

Death Row Inmate (uncredited)

Joe Flaherty

Policeman (uncredited)

Hank Robinson

Radio Singer (uncredited)

Susan Lanier

Plumber (uncredited)

Frank Sivero

Theater Patron (uncredited)

Tom Willett