The Chief / Treasury Agent (182 episodes, 1950-1955)
Agent / Armand Marquette / Artist / Benson / Philip Meech / Richie Richfield (9 episodes, 1950-1954)
Agent Blaine / Agent Collins / Agent Cook / Agent Culver / Agent Keller / Agent LaMarr (7 episodes, 1954-1955)
Agent Grant / Agent Jennings / Agent Trumbull / Agent Warwick / Agent Weston (5 episodes, 1955)
Kerry / Sam Leonard / Steve (5 episodes, 1952-1955)
Agent Fremont / Agent Lindsey / Agent Ross (5 episodes, 1955)
Chuck Wells / Mickey Keller / Sid Emery (4 episodes, 1952-1955)
Agent Joe Moresby / Charlie Pool / Joe Navarri (3 episodes, 1954-1955)
Agent Hamilton / Agent Jack / Agent Putnam (3 episodes, 1952-1955)
Dawson / Jim Houston / Mr. Stone (3 episodes, 1952-1955)
Mrs. Clayton / Mrs. Eustice / Woman on Street (3 episodes, 1955)
Frankie Ames / Ollie Blake / Vince Sanderson (3 episodes, 1954-1955)
Louise / Millie Evans (3 episodes, 1952-1955)
Eadie Starr / Judy King (3 episodes, 1954-1955)
Martin Pollard / Steve Mercer (3 episodes, 1954-1955)
Al Berwin / Johnny Crawford / Mike Prescott (3 episodes, 1955)
Russ Bagley (3 episodes, 1951-1955)
(3 episodes, 1952-1954)
Agent Guthrie (3 episodes, 1954-1955)
Arbie Ferris / Randy Meeker (2 episodes, 1953)
Jimmy Randall / Lloyd (2 episodes, 1954-1955)
Al Baldwin / Barney (2 episodes, 1954-1955)
Kay Pendleton / Louise Madden (2 episodes, 1954-1955)
Gerry / Laura Sanderson (2 episodes, 1954-1955)
Jim Weber / Nick Chandler (2 episodes, 1955)
Rich Keller / Spencer (2 episodes, 1954-1955)
Harry Hagen / Harry Malan (2 episodes, 1952-1955)
Agent Clark / Agent Colton (2 episodes, 1954-1955)
Jed Winters / Jesse Boone (2 episodes, 1954-1955)
Renzoni / Thomas Gruder (2 episodes, 1954-1955)
Dalton / Lt. Campbell (2 episodes, 1955)
Chester / Guard (2 episodes, 1954-1955)
Fred Bristol / Lucas (2 episodes, 1954-1955)
Seward / Tax Adjuster (2 episodes, 1955)
Mae Loomis (2 episodes, 1955)
Doris Brandon (2 episodes, 1955)
Bowman (2 episodes, 1952-1953)
(2 episodes, 1953-1954)
(2 episodes, 1954)
Agent (2 episodes, 1950-1952)
(2 episodes, 1951-1953)
(2 episodes, 1952-1953)
Julie Adams (2 episodes, 1954-1955)
First Druggist / Pete Pollock (1 episode, 1954-1955)
Pietro Cataula / Sherman (2 episodes, 1955)
(2 episodes, 1950-1952)
(2 episodes, 1950-1951)
(2 episodes, 1951-1954)
(2 episodes, 1951-1952)
(2 episodes, 1951)
(2 episodes, 1954-1955)
Judge (1 episode, 1955)
(1 episode, 1953)
Gloria Loomis (1 episode, 1954)
Steve Madden (1 episode, 1954)
Ralph Kane (1 episode, 1954)
Smuggler (1 episode, 1954)
Ed Emery (1 episode, 1954)
Agent Mitchell (1 episode, 1954)
Roy Weber (1 episode, 1955)
Paul Lacosta (1 episode, 1955)
Jean Brielle (1 episode, 1955)
Rita Terni (1 episode, 1955)
Scottie Barrow (1 episode, 1955)
Harry Adams (1 episode, 1955)
Avery Humbolt (1 episode, 1955)
Laura Matson (1 episode, 1955)
(1 episode, 1950)
Nora Stone (1 episode, 1952)
(1 episode, 1952)
Artist's wife (1 episode, 1952)
Frank Shelby (1 episode, 1954)
Papa Reynosa (1 episode, 1954)
Ramon Orosi (1 episode, 1954)
Ronald Terni (1 episode, 1955)
Kay Randall (1 episode, 1955)
Cecilia Jaroso (1 episode, 1955)
Marie Lacosta (1 episode, 1955)
Ben Adams (1 episode, 1955)
Larry (1 episode, 1955)
Sidney Tyler (1 episode, 1955)
Arnold Matthews (1 episode, 1955)
Edward Malone (1 episode, 1955)
Miguel Ramierz (1 episode, 1955)
Maria Reynosa (1 episode, 1954)
Dan Reece (1 episode, 1954)
Gil Henry (1 episode, 1954)
Warden McClure (1 episode, 1954)
Wilma Shelby (1 episode, 1954)
Agent 'Brad' Bradley (1 episode, 1954)
Man (1 episode, 1954)
Marty Hinton (1 episode, 1955)
Miguel (1 episode, 1955)
Mona Barrow (1 episode, 1955)
Det. Sgt. Draper (1 episode, 1955)
Eddie Sykes (1 episode, 1955)
George Pendleton (1 episode, 1955)
Molly (1 episode, 1955)
Charlotte Clinton (1 episode, 1955)
Rita McDonald (1 episode, 1955)
Mrs. Marie Brielle (1 episode, 1955)
Mr. Summers (1 episode, 1954)
Agent Lansing (1 episode, 1954)
Agent Herndon (1 episode, 1954)
Paul Madden (1 episode, 1954)
Agent Randall (1 episode, 1954)
Seth (1 episode, 1955)
Agent Kermit (1 episode, 1955)
Agent Duncan (1 episode, 1955)
Customs Agent McGraw (1 episode, 1955)
Harry Jasper (1 episode, 1955)
Benny (1 episode, 1955)
Customs Inspector (1 episode, 1955)
Agent Logan (1 episode, 1955)
Agent Dunlap (1 episode, 1955)
Dick Stone (1 episode, 1952)
Doctor (1 episode, 1954)
Agent Duncan (1 episode, 1954)
Mr. Fulton (1 episode, 1954)
Mrs. Welby (1 episode, 1954)
Sid Clemson (1 episode, 1954)
Alfred Mercer (1 episode, 1955)
Cobey (1 episode, 1955)
Deckers (1 episode, 1955)
Customs Insp. Stuart (1 episode, 1955)
Showgirl (1 episode, 1955)
Pepe (1 episode, 1955)
Talbot (1 episode, 1955)
Novak (1 episode, 1955)
Seibert (1 episode, 1955)
Agent Gilbert (1 episode, 1954)
State Police Lieutenant (1 episode, 1954)
The Teller (1 episode, 1955)
Mitch Sanders (1 episode, 1955)
Brewster (1 episode, 1955)
Mal Solan (1 episode, 1955)
Alice (1 episode, 1955)
Frank (1 episode, 1955)
Agent Ed Hatton (1 episode, 1955)
Bob (1 episode, 1952)
Druggist (1 episode, 1954)
Kitty Monroe (1 episode, 1954)
Operator (1 episode, 1955)
Troy (1 episode, 1955)
Waiter (1 episode, 1955)
Agent Wellman (1 episode, 1955)
Cromwell (1 episode, 1955)
Mama (1 episode, 1955)
Mexican Landlady (1 episode, 1955)
Reporter (1 episode, 1954)
Frazer (1 episode, 1955)
Doctor (1 episode, 1955)
Woman (1 episode, 1950)
(1 episode, 1951)
(1 episode, 1954)
(1 episode, 1955)
Clyde (1 episode, 1955)
Whitie (1 episode, 1955)
Miller (1 episode, 1955)
Ruston (1 episode, 1955)
Victim at Mailboxes (uncredited) (1 episode, 1954)
Second Druggist (uncredited) (1 episode, 1954)
Lawyer (uncredited) (1 episode, 1955)
Joe (uncredited) (1 episode, 1955)
Gito (uncredited) (1 episode, 1955)