Characters in A is for Alibi

Kinsey Millhone

Private investigator in Santa Teresa who narrates the story and takes on Nikki Fife's case.

Also in B is for Burglar, 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

Nikki Fife

Laurence Fife's widow, released after eight years in prison, who hires Kinsey to find the real killer.

Also in H is for Homicide

Charlie Scorsoni (A is for Alibi)

Laurence Fife's former law partner, who becomes involved with Kinsey during the investigation.

Gwen Jones (A is for Alibi)

Rosie (A is for Alibi)

Also in B is for Burglar, 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

Libby Glass

An accountant and one of Laurence Fife's mistresses, whom Kinsey tracks down.

Henry Pitts

Also in B is for Burglar, 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

Colin Fife

Laurence and Nikki Fife's son, part of the family Kinsey investigates.

Gregory Fife

Diane Fife

Charlotte Mercer

One of Laurence Fife's mistresses, the wife of a local judge.

Garry Steinberg

Laurence Fife (A is for Alibi)

Prominent divorce lawyer whose death eight years earlier sent his wife to prison.

Con Dolan

Homicide lieutenant who led the original investigation into Laurence Fife's death.

Also in B is for Burglar, 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

Sharon Napier

Laurence Fife's former secretary, whose trail leads Kinsey to Las Vegas.