B
- Mary Badham ("The Bewitchin' Pool")
- Vincent Baggetta ("The Thirty-Fathom Grave")
- Raymond Bailey ("Escape Clause", "Back There" and "From Agnes—With Love")
- Jimmy Baird ("The Changing of the Guard")
- Robert Ball ("I Dream of Genie")
- Shirley Ballard ("Person or Persons Unknown")
- Martin Balsam ("The Sixteen-Millimeter Shrine" and "The New Exhibit")
- Sam Balter ("A Kind of a Stopwatch") (uncredited)
- Douglas Bank ("I Am the Night—Color Me Black" (uncredited) and "What's in the Box"(uncredited))
- Trevor Bardette ("One More Pallbearer")
- Rayford Barnes ("A Quality of Mercy")
- Vickie Barnes ("The Last Rites of Jeff Myrtlebank")
- Leslie Barrett ("I Shot an Arrow Into the Air")
- Barbara Barrie ("Miniature")
- Patricia Barry ("The Chaser" and "I Dream of Genie")
- Harry Bartell ("I Shot an Arrow Into the Air")
- Eddie Barth ("The New Exhibit") (credited as Ed Barth)
- Martine Bartlett ("Night Call")
- Anne Barton ("The Monsters Are Due on Maple Street" and "Shadow Play")
- Larry Barton ("Steel") (voice) (uncredited)
- Wolfe Barzell ("He's Alive")
- Richard Basehart ("Probe 7, Over and Out")
- Joe Bassett ("And When the Sky Was Opened")
- Arthur Batanides ("Mr. Denton on Doomsday" and "The Mirror")
- Mary Ellen Batten ("To Serve Man" (uncredited))
- Jeanne Bates ("It's a Good Life")
- Barbara Baxley ("Mute")
- Paul Baxley ("The Last Flight") (uncredited)
- George Baxter ("Escape Clause") (uncredited)
- Orson Bean ("Mr. Bevis")
- Billy Beck ("The New Exhibit")
- Terry Becker ("I Am the Night—Color Me Black")
- Henry Beckman ("Valley of the Shadow" and "A Thing About Machines")
- Bonnie Beecher ("Come Wander With Me")
- Frank Behrens ("Cavender Is Coming")
- Fred Beir ("Death Ship")
- Leon Belasco ("A Kind of a Stopwatch")
- Russ Bender ("The Fugitive", "On Thursday We Leave for Home", "The Hitch-Hiker")
- William Benedict ("Sounds and Silences")
- Marjorie Bennett ("The Chaser", "Kick the Can", and "No Time Like the Past")
- Tony Benson ("On Thursday We Leave for Home") (credited as Anthony Benson)
- Gene Benton ("To Serve Man") (uncredited))
- Oscar Beregi, Jr. ("The Rip Van Winkle Caper", "Deaths-Head Revisited," and "Mute")
- Shelley Berman ("The Mind and the Matter")
- Barry Bernard ("Judgment Night")
- Joseph Bernard (actor) ("The Shelter")
- Shari Lee Bernath ("The Parallel")
- James Best ("The Grave", "The Last Rites of Jeff Myrtlebank" and "Jess-Belle")
- Clem Bevans ("Hocus-Pocus and Frisby")
- Philippa Bevans ("The Changing of the Guard")
- Robert Biheller ("The Changing of the Guard")
- Theodore Bikel ("Four O'Clock")
- Edward Binns ("I Shot an Arrow Into the Air" and "The Long Morrow")
- Bill Bixby ("The Thirty-Fathom Grave")
- Larry J. Blake ("The Trouble With Templeton")
- Lela Bliss ("Time Enough at Last")
- Joan Blondell ("What's in the Box")
- Larry Blyden ("A Nice Place to Visit" and "Showdown with Rance McGrew")
- Ann Blyth ("Queen of the Nile")
- Lloyd Bochner ("To Serve Man")
- Merritt Bohn ("Steel" and "One for the Angels")
- Jim Boles ("Jess-Belle" and "The Arrival")
- John Bolt ("Come Wander With Me")
- David Bond ("The New Exhibit")
- Robert Boon ("Deaths-Head Revisited" and "Mute")
- Randy Boone ("The 7th Is Made Up of Phantoms")
- Billy Booth ("A Stop at Willoughby") (uncredited)
- Nesdon Booth ("The Prime Mover" and "Escape Clause")
- Eugene Borden ("Dead Man's Shoes") (uncredited)
- Willis Bouchey ("The Masks")
- Antoinette Bower ("Probe 7, Over and Out")
- Leslie Bradley ("Judgment Night")
- Neville Brand ("The Encounter")
- Robert Bray ("The 7th Is Made Up of Phantoms")
- Larry Breitman ("Hocus-Pocus and Frisby")
- Leonard Bremen ("The New Exhibit")
- Keith Britton ("To Serve Man" (uncredited))
- Patricia Breslin ("Nick of Time" and "No Time Like the Past")
- Morgan Brittany ("Nightmare as a Child" (uncredited), "Valley of the Shadow" and "Caesar and Me" )
- Peter Brocco ("The Four of Us Are Dying" and "Hocus-Pocus and Frisby" (uncredited))
- James Broderick ("On Thursday We Leave for Home")
- Charles Bronson ("Two")
- Walter Brooke ("The Jungle" and "A Short Drink From a Certain Fountain")
- Barry Brooks ("The Obsolete Man")
- Beverly Brown ("The Odyssey of Flight 33")
- Lew Brown ("A Thing About Machines" (uncredited), "Back There", "Long Distance Call" and "The 7th Is Made Up of Phantoms" (uncredited))
- Robert Brubaker ("The Arrival") (uncredited)
- James Browning ("The Changing of the Guard")
- George Bruggerman ("The Silence") (uncredited)
- Claudia Bryar ("Mute")
- Paul Bryar ("And When the Sky Was Opened" and "He's Alive" (uncredited))
- Edgar Buchanan ("The Last Rites of Jeff Myrtlebank")
- Jennifer Bunker ("A Hundred Yards Over the Rim")
- Christine Burke ("Of Late I Think of Cliffordville")
- Walter Burke ("The Big Tall Wish")
- Carol Burnett ("Cavender Is Coming")
- Terry Burnham ("Nightmare as a Child")
- Bart Burns ("Valley of the Shadow")
- Michael Burns ("The Shelter")
- Paul E. Burns ("Escape Clause") (uncredited)
- John Burnside ("To Serve Man" (uncredited))
- William Burnside ("To Serve Man" (uncredited))
- Robert Burton ("Mr. Denton on Doomsday")
- Carol Byron ("Ninety Years Without Slumbering")
- Jeffrey Byron ("The Bewitchin' Pool") (as Tim Stafford)
Read more about this topic: List Of The Twilight Zone (1959 TV Series) Guest Stars