Characters in I is for Innocent

Kinsey Millhone

Also in A is for Alibi, 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, "L" is for lawless

Lonnie Kingman

Also in "E" is for Evidence, K Is for Killer, "L" is for lawless, "M" is for Malice, "N" is for Noose, "O" is for outlaw, P is for Peril, Q Is for Quarry, T is for Trespass, W is for wasted

Isabelle Barney

Curtis McIntyre (I is for Innocent)

Robert Dietz

Also in "G" is for Gumshoe, H is for Homicide, "N" is for Noose, P is for Peril, R is for Ricochet, W is for wasted, X, Y is for yesterday

Rhe Parsons

Jonah Robb

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

Rosie (A is for Alibi)

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

Simone Orr

Morley Shine

Also in Q Is for Quarry, W is for wasted, X

Con Dolan

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

Andy Warhol (Goodreads)

Maclin "Mac" Voorhies

Also in "E" is for Evidence, H is for Homicide, J Is for Judgment, P is for Peril

John Wayne (Goodreads)

Dinsmore Jordan

Herb Foss

Don and Julie Seeger

Sheri Cordero

Betty (I is for Innocent)

Twig (Goodreads)

Peter Weidmann

Andy Rooney (Goodreads)

Leland (I is for Innocent)

William Angeloni

Chris White

An elderly man

Regina Turner

Burt Walker

Ho Chi Minh (Goodreads)