Characters in B is for Burglar

Kinsey Millhone

Also in A is for Alibi, C is for Corpse, D is for Deadbeat, "E" is for Evidence, "F" is for fugitive, "G" is for Gumshoe, H is for Homicide, I is for Innocent, K Is for Killer, "L" is for lawless

Beverly Danziger

Elaine Boldt

Pat Usher

Jonah Robb

Also in C is for Corpse, D is for Deadbeat, "E" is for Evidence, "G" is for Gumshoe, I is for Innocent, J Is for Judgment, K Is for Killer, "L" is for lawless, "M" is for Malice, "N" is for Noose

Marty Grice

Julia Ochsner

Rosie (A is for Alibi)

Also in A is for Alibi, C is for Corpse, D is for Deadbeat, "G" is for Gumshoe, I is for Innocent, J Is for Judgment, "L" is for lawless, "M" is for Malice, "N" is for Noose, P is for Peril

Vera Lipton

Also in "G" is for Gumshoe, H is for Homicide, J Is for Judgment, R is for Ricochet

Con Dolan

Also in A is for Alibi, D is for Deadbeat, "E" is for Evidence, "G" is for Gumshoe, H is for Homicide, I is for Innocent, K Is for Killer, "L" is for lawless, "M" is for Malice, "O" is for outlaw

Henry Pitts

Also in A is for Alibi, C is for Corpse, D is for Deadbeat, "E" is for Evidence, "F" is for fugitive, "G" is for Gumshoe, H is for Homicide, K Is for Killer, "M" is for Malice, "N" is for Noose

Leonard Grice

Tillie Ahlberg

Roland Makowski

Mike (B is for Burglar)

Lily Howe

Orris Snyder and May Snyder

Wim Hoover

Mingus

Aubrey Danziger