Sheriff Ethan Miller | Roger Nixon | Dr. Yaeger Scanlan | Dr. MacIntyre | Desiree Atkins | Dr. Steven Hamilton | Nell Potter Winters | Dean Winters | Jessie Brooks | U.S. Marshal Ted Palmer | Vice Principal Gibbons | Byron Moore | Troy Turner | William Clark | Chrissy Parker | Principal Terrence Reynolds | Henry Small | Jennifer Small | Rachel Dunleavy | Ryan James | Dr. Lawrence Garner | Mayor William 'Billy' Tate | Gabriel 'Gabe' Sullivan | Dr. Helen Bryce | Ian Randall | Joseph Willowbrook | Kyla Willowbrook | Whitney Fordman | Tina Greer | Captain Maggie Sawyer | Kern | Pine | Bishop | Nicky | Mike | Dr. Fredrick Walden | Lucas Luthor

Dr. Yaeger Scanlan
Species: Human
Family: unknown
Appearances: S2: Vortex; S3: Resurrection; S4: Scare; S5: Lexmas
Background:
Played By: Jerry Wasserman
Desiree Atkins
Species: Metahuman
Real Name: Alison Sanders
Family: ex-husband, Alexander 'Lex' Luthor
Appearances: S2: Heat
Background:
Played By: Krista Allen
Dean Winters
Species: Human
Family: wife, Eleanore 'Nell' Potter Winters; sister-in-law, Laura Potter Lang; brother-in-law, Lewis Lang; niece, Lana Lang
Appearances: S2: Duplicity
Background:
Played By: Michael Kopsa
Jessie Brooks
Species: Human
Family: father, Mr. Brooks
Appearances: S2: Red
Background:
Played By: Sara Downing
U.S. Marshal Ted Palmer
Species: Human
Family: unknown
Appearances: S2: Red
Background:
Played By: Michael Tomlinson
Vice Principal Gibbons
Species: Human
Family: unknown
Appearances: S2: Red
Background:
Played By: Daryl Shuttleworth
Byron Moore
Species: Metahuman
Family: parents, Mr. and Mrs. Moore
Appearances: S2: Nocturne
Background:
Played By: Sean Faris
William Clark
Species: Human
Family: daughter, Martha Clark Kent; son-in-law, Jonathan Kent; adopted grandson, Clark Kent
Appearances: S2: Redux
Background:
Played By: George Coe
Chrissy Parker
Species: Metahuman
Aliases: Missy Parker, Robin Stroud
Family: unknown
Appearances: S2: Redux
Background:
Played By: Maggie Lawson
Principal Terrence Reynolds
Species: Human
Family: unknown
Appearances: S2: Redux
Background:
Played By: Richard Gant
Henry Small
Species: Human
Family: ancestor, Ezra Small; wife, Jennifer Small; daughter, Lana Lang
Appearances: S2: Lineage, Skinwalker, Insurgence, Suspect, Witness
Background:
Played By: Patrick Cassidy
Jennifer Small
Species: Human
Family: husband, Henry Small; stepdaughter, Lana Lang
Appearances: S2: Lineage, Insurgence, Witness
Background:
Played By: Shelly Schiavoni / Eileen Pedde
Rachel Dunleavy
Species: Human
Family: son, Lucas Luthor
Appearances: S2: Lineage
Background:
Played By: Blair Brown
Dr. Lawrence Garner
Species: Human
Family: unknown
Appearances: S2: Ryan; S3: Delete, Memoria
Background:
Played By: Martin Cummins
Sheriff/Mayor William 'Billy' Tate
Species: Human
Family: unknown
Appearances: S2: Ryan; S3: Relic
Background:
Played By: William B. Davis / Michael Karl Richards
Dr. Helen Bryce
Species: Human
Family: father, Dr. Bryce; ex-husband, Lex Luthor
Appearances: S2: Dichotic, Visage, Fever, Visitor, Precipice, Calling, Exodus; S3: Exile, Phoenix
Background:
Played By: Emmanuelle Vaugier
Ian Randall
Species: Metahuman
Family: unknown
Appearances: S2: Dichotic, S3: Asylum
Background:
Played By: Jonathan Taylor Thomas
Joseph Willowbrook
Species: Human
Family: granddaughter, Kyla Willowbrook
Appearances: S2: Skinwalker, S3: Talisman
Background:
Played By: Gordon Tootoosis
Kyla Willowbrook
Species: Metahuman
Family: grandfather, Joseph Willowbrook
Appearances: S2: Skinwalker
Background:
Played By: Tamara Feldman
Captain Maggie Sawyer
Species: Human
Family: unknown
Appearances: S2: Insurgence; S3: Exile; S5: Exposed; S7: Descent
Background:
Played By: Jill Teed
Kern
Species: Human
Family: unknown
Appearances: S2: Insurgence
Background:
Played By: Byron Mann
Pine
Species: Human
Family: unknown
Appearances: S2: Insurgence
Background:
Played By: Kevin Gage
Bishop
Species: Human
Family: unknown
Appearances: S2: Insurgence
Background:
Played By: Karen Holness
Nicky
Species: Human
Family: unknown
Appearances: S2: Insurgence
Background:
Played By: Colin Cunningham
Mike
Species: Human
Family: unknown
Appearances: S2: Suspect
Background:
Played By: Eric Keenleyside
Dr. Fredrick Walden
Species: Human
Family: unknown
Appearances: S2: Rush, Rosetta, Calling
Background:
Played By: Rob LaBelle
Lucas Luthor
Species: Human
Family: parents, Lionel Luthor and Rachel Dunleavy; half-brothers, Lex and Julian Luthor; half-sister, Lutessa Lena Luthor
Appearances: S2: Prodigal
Background:
Played By: Paul Wesley