Among the movies Hewitt appeared in are A Private's Affair, That Touch of Mink, Days of Wine and Roses, How to Murder Your Wife, Sweet Charity, and The Barefoot Executive.
He never became a major star, but he did have a lengthy career which included smaller parts in several well-known programs, including Alfred Hitchcock Presents, Maverick, 77 Sunset Strip, Daktari, Leave It to Beaver, The Donna Reed Show, Dr. Kildare, Lost in Space, Bewitched, ...
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The Barefoot Executive
As Farnsworth
How to Murder Your Wife
As District Attorney
The Brotherhood
As Sol Levin
Days of Wine and Roses
As Rad Leland
That Touch of Mink
As Doctor Gruber
Son of Flubber
As Prosecuting Attorney
Tail Gunner Joe
As Dean Acheson
The Computer Wore Tennis Shoes
As Dean Collingsgood
The Misadventures of Merlin Jones
As Professor Shattuck
The Seniors
As The Inspector
The Further Adventures of Gallegher
As Chauncy Talbot
The Legend of Lizzie Borden
As Mayor Coughlin
R.P.M.
As Hewlett
Career
As Matt Helmsley
Bachelor in Paradise
As Attorney Backett
A Private's Affair
As Maj. R.C. Hanley
The D.A.: Murder One
As Judge Tanner
The Absent-Minded Professor
As General Hotchkiss
Sweet Charity
As Nicholsby
Follow That Dream
As H. Arthur King
Now You See Him, Now You Don't
As Dean Collingsgood
Wake Me When the War Is Over
As Koenig
Pueblo
As Congressional Chairman
Gomer Pyle, U.S.M.C.
My Favorite Martian
As Det. Bill Brennan
Saints and Sinners
Bewitched
As Linton H. Baldwin
The Barbara Stanwyck Show
As Jack Harrison
Angel
As J.O. Clyde
Hazel
As Mr. Buckley
The Lucy Show
As Dutton
The Chevy Mystery Show
As Mr. Fifer
Perry Mason
As Curt Ordway
Dennis the Menace
As Dr. Alfred Johnson
Alfred Hitchcock Presents
As Howard Cole
The Wonderful World of Disney
As Prosecutor (archive footage)
Lost in Space
As Lemnoc
77 Sunset Strip
As Frank King
Maverick
As George Parker
The Danny Thomas Hour
As Sam Rose
I Dream of Jeannie
As Don Anderson
Ironside
As Carter
Omnibus