Connie Brooks (130 episodes, 1952-1956)
Osgood Conklin (130 episodes, 1952-1956)
Mrs Margaret Davis / Mrs. Margaret Davis (115 episodes, 1952-1956)
Philip Boynton (107 episodes, 1952-1956)
Walter Denton (94 episodes, 1952-1955)
Harriet Conklin (92 episodes, 1952-1955)
Oliver Munsey / Mr Blake (30 episodes, 1952-1956)
Mrs. Martha Conklin / Mrs Martha Conklin (30 episodes, 1952-1956)
Benny Romero / Ricky Velasco (15 episodes, 1954-1956)
Angela Devon (15 episodes, 1953-1956)
Mrs Ruth Nestor / Mrs. Ruth Nestor (11 episodes, 1955-1956)
Gene Talbot (11 episodes, 1955-1956)
Stretch Snodgrass / Fabian 'Stretch' Snodgrass (11 episodes, 1953-1955)
Supt. Edgar T. Stone / Mr Michaels / Supt. Stone (9 episodes, 1953-1955)
Bones Snodgrass (9 episodes, 1953-1954)
Mrs Martha Conklin / Mrs. Martha Conklin (8 episodes, 1952-1955)
Roberto Romero / Kran, Maharajah of Boongadhi / Mr Seymour / Mr. Clary - Butcher / Paul Morelli (7 episodes, 1952-1956)
Bob Lansing / Charlie / Grady / Green Grocer / Jerry Jones / Laundry Man / Wash Man (6 episodes, 1953-1956)
Mr Fischer / Airport Clerk / Aloysius Kilgallen / Matthew Jones / Mr. Glint - Lawyer / Professor Anderson (7 episodes, 1953-1956)
Grandfather Munsey / Gus 'Snakehips' Geary / Gus Geary / Received Diploma / Safari O'Toole (4 episodes, 1952-1955)
Clint Allbright (4 episodes, 1955)
Miss Daisy Enright (4 episodes, 1953-1955)
Maurice La Blanche (4 episodes, 1953)
Minerva--Cat (1 episode, 1953-1955)
Lucretia Hannibal (3 episodes, 1956)
Mrs Wynona Nestor / Mrs Graybar (3 episodes, 1952-1955)
Harvey Wheaton / Mr Fairchild / Mr. Fogarty (3 episodes, 1954-1956)
Mr Garson Felix / Mr Smith / Phil Waddley (3 episodes, 1953-1956)
Bennett / Mr Chambers / Mr Maynard (2 episodes, 1952-1955)
Elmer / Messenget / Mr. Faylen (2 episodes, 1953-1955)
Harry (2 episodes, 1956)
Dr. Keller / T.J. McFadden (2 episodes, 1953-1955)
Mr. Jason / Paul de Chand (2 episodes, 1955)
Harvey Poole / Sammy Clark (2 episodes, 1954)
Miss Hannibal / Mrs, Ferguson (1 episode, 1955)
Lieutenant / Postal Policeman (2 episodes, 1953-1954)
Grace Lansing / Nurse Dooley (1 episode, 1955-1956)
Dan Beck / Gus the window washer (2 episodes, 1954-1955)
Harvey Brent / Larry (2 episodes, 1953-1954)
Ellen North / Louise March (2 episodes, 1956)
High School Student / Karen March (2 episodes, 1956)
Gina (1 episode, 1953)
Billy Bunker (1 episode, 1954)
Paul Bagley (1 episode, 1956)
Mr. Stone (1 episode, 1952)
Mr. Burwell (1 episode, 1952)
Katie (1 episode, 1953)
Joe Phillips (1 episode, 1953)
Terrence Layton (1 episode, 1954)
Jasper Flint (1 episode, 1954)
Self (1 episode, 1955)
Mr Smith From Phone Company (1 episode, 1955)
Mike Beck (1 episode, 1955)
Officer Jack Hurley (1 episode, 1955)
Henry Finley (1 episode, 1956)
Mrs. Pryor (1 episode, 1956)
Mr. Irving Fisher (1 episode, 1956)
Leland Cheney (1 episode, 1956)
Miss Atterberry (1 episode, 1952)
Boy Selling Xmas Trees (1 episode, 1953)
Mr. Stone (1 episode, 1953)
Suzy Prentiss (1 episode, 1953)
Jailor (1 episode, 1954)
Mr. Bagley (1 episode, 1954)
Biff Moonie (1 episode, 1954)
Officer Harvey Fletcher (1 episode, 1954)
Mrs. Dunphy (1 episode, 1955)
Mr. Sampson (1 episode, 1956)
Stokes (1 episode, 1956)
Mr Peterson (1 episode, 1956)
Jeff Cartwright (1 episode, 1955)
Army Colonel (1 episode, 1956)
Mr. Jackson (1 episode, 1953)
Miss Sanders (1 episode, 1954)
Stevie (1 episode, 1954)
Uncle Roberto (1 episode, 1954)
Mr. Greeley (1 episode, 1954)
Gregory Farnsworth (1 episode, 1954)
Self - Kool Shake Spoksman (1 episode, 1955)
(1 episode, 1955)
Judge / Parker Clemens (uncredited) (2 episodes, 1953-1955)
Dr. Bedford / Man (uncredited) (2 episodes, 1954)
Mrs. Carney (uncredited) (1 episode, 1952)
Mr. Whipple (uncredited) (1 episode, 1952)
The Policeman (uncredited) (1 episode, 1952)
Superintendent Stone (uncredited) (1 episode, 1953)
Melvin Fenwick (uncredited) (1 episode, 1954)
Tom Brent (uncredited) (1 episode, 1954)
Hetherington Philpot (uncredited) (1 episode, 1954)
Mister Fargo (uncredited) (1 episode, 1955)
Mr. Hobart (uncredited) (1 episode, 1955)
Harem Dancer (uncredited) (1 episode, 1955)
Frankie Chapman (uncredited) (1 episode, 1956)
Loretta (uncredited) (1 episode, 1956)
Man in Airport (uncredited) (1 episode, 1956)
Charlie (uncredited) (1 episode, 1956)
Policeman (uncredited) (1 episode, 1956)
George Bagley (uncredited) (1 episode, 1956)
Mr. Hoffman (uncredited) (1 episode, 1956)