List of Quantum Leap characters

The following is a list of characters from the sci-fi/drama Quantum Leap, created by Donald Bellisario.

Project Quantum Leap

• Dr. Samuel Beckett (Scott Bakula) - The mastermind behind Project Quantum Leap who leaps back and forth within his own lifetime, putting things right that once went wrong. See main article for more.
• Rear Admiral Albert Calavicci (Dean Stockwell) - Sam's right-hand man who appears in the form of a hologram that only Sam can see and hear. See main article for more.
• Gushie (Dennis Wolfberg) - Project Quantum Leap's head computer programmer and senior operations coordinator. A quirky man, Gushie is often described as "a little guy with bad breath". Gushie once filled in for Al as Sam's holographic contact when Al was busy attempting to track down a murderer who escaped the waiting room.
• Ziggy (voiced by Deborah Pratt) - The supercomputer Sam designed to run Project Quantum Leap. The computer has a feminine personality and a massive ego; the latter feature is an accomplishment Sam is particularly proud of, as it makes Ziggy much more than a simple number-crunching machine. Ziggy is programmed with historical information through Sam's life and has access to outside databases, and is able to project the likely effect of Sam's actions on history.
• Dr. Donna Eleese (Teri Hatcher, age 19 / Mimi Kuzyk, age 45) - Born Donna Wojohowitz, she is Sam's wife and director of Project Quantum Leap in her husband's absence. Originally, Donna was not involved with the project, until Sam altered history, thus ensuring her involvement and getting rid of the Committee (see below).
• Dr. Verbena Beeks (Candy Brown Houston) - The project's head psychiatrist. It is her job to work directly with the person Sam displaces when he leaps as they are often in a state of shock and panic when they arrive.
• Tina Martinez (Gigi Rice) - Tina is a medical technician that works on the Project. No one can enter the Imaging Chamber or the Accelerator Chamber without first being inspected by her. She is Al's girlfriend and is also having a secret affair with Gushie. In the episode where Sam accidentally erased Al from existence, she was married to Gushie.
• Edward St. John V (Roddy McDowall) - When Sam changed history and accidentally erased Al from existence, Edward St. John V appeared as his holographic contact. After correcting the error, Al reappeared. Whether or not St. John works on the Project outside of that alternate timeline is unknown.
• Samantha Josephine "Sammy Jo" Fuller (Kimberly Cullum, age 11) - Project technician who works on the project. She is the biological daughter of Sam and Abigail Fuller, conceived during a leap into Abigail's fiancé in 1966. Only Al knows the truth about Sammy Jo's parentage.
• The Committee - Led by men named Weitzman and Bartlett, the committee oversaw Project Quantum Leap until Sam altered history, bringing Donna onto the Project, assuring government funding and eliminating the need for the Committee.
• Senator (Warren Frost) - The head of a government oversight committee that tried to shut down Project Quantum Leap when Sam failed to stop the downing of a U-2 spy plane.
• Sen. Diane McBride (Alice Adair) - Although he failed to stop the U-2, Sam did change history and Sen. Diane McBride became the head of the oversight committee and ruled to continue the Project's funding.

Friends and Family

• John Samuel Beckett (Scott Bakula) - Sam's father, a gruff but kind dairy farmer in Elk Ridge, Indiana. He was named after his grandfather, a Civil War officer.
• Thelma Louise Beckett (Caroline Kava) - Sam's mother. After her husband's death, she moved to Hawaii to live with her daughter and her second husband.
• Lt. Tom Beckett (David Newsom) - Sam's older brother who was killed in Vietnam on April 8, 1970 until Sam changed history and kept his brother alive.
• Katherine "Katie" Beckett (Olivia Burnette) - Sam's younger sister. To get away from trouble at home, she married an abusive alcoholic at a young age. Years later she divorced him and eventually remarried an Air Force officer, Lt. Jim Bonick.
• Beth Calavicci (Susan Diol) - Al's first wife and the only woman he ever truly loved.

Sammy Jo Fuller Sam's dauaghter due to his leaping. She is a child prodegy who grows up to work at Project Quamtem Leap however she does not know that Sam is her father.

The Evil Leaper Project

In Season 5, Sam discovered a leaper from another project. This leaper project seemed to follow the same structure and scientific principles as Quantum Leap, but was dedicated to the opposite goal of putting wrong what once went right. The act of Leaping on the Evil Leaper project seemed to cause the Leaper and their holographic partner great pain.

• Alia (Renée Coleman) - Sam's counterpart, a beautiful and deadly woman who is leaping around in time, committing terrible acts in an attempt to get home. After meeting and failing to kill Sam twice, Alia abandons her old ways and tries to escape the ones controlling her leaping with Sam's help. It is implied that Alia was an unwilling participant in the project.
• Zoey (Carolyn Seymour) - Alia's holographic partner. She is a cruel and sadistic woman who, after Alia breaks free of their project's control on her, leaps back in an attempt to kill Alia herself.
• Thames (Hinton Battle) - When Zoey leaped, a darkly comical man named Thames became her hologram.
• Lothos - The other project's computer system, analogous to Ziggy.

The Leapees

Below is a list of all of the people displaced during Project Quantum Leap, commonly referred to as "Leapees" by fans of the show.

• Cpt. Tom Stratton (Layne Beamer) - Air Force test pilot on a program to break faster than Mach 3.
• Tim Fox (Ken Martin) - A minor league baseball player near the end of his career.
• Dr. Gerald Bryant (John Tayloe) - A once-respected English Lit. professor having an affair with one of his students.
• Clarence "Kid" Cody (Michale Strasser) - A professional boxer on the take from the mafia.
• Dr. Daniel Young (Sloan Fischer) - A large animal veterinarian in rural Texas.
• Frankie La Palma (Page Mosely) - A handsome mafia hitman.
• Geno Frascotti (Michael Genovese) - A feared mafia don.
• Jesse Tyler (Howard Matthew Johnson) - A chauffeur/houseman to a wealthy, elderly woman.
• Cameron Wilson (Scott Menville) - A teenaged gearhead.
• Nick Allen (Tony Heller) - A private investigator in love with his partner’s wife.
• A firefighter - A firefighter rescuing an old woman’s cat from a tree.
• Lt. Tom McBride (Ron Chabidon) - A New York police detective on his honeymoon to Niagara Falls.
• Chad Stone (Kevin Light) - A professional movie stuntman.
• Charlie MacKenzie (Bill Arnold) - A recently-discharged sailor returning home with a Japanese war bride.
• Samantha Stormer (La Reine Chabut) - A professional secretary at a Detroit automotive manufacturing company.
• Andrew Ross (Bill Burdin) - A blind classical concert pianist.
• Chick Howell (Douglas Ibold) - A deejay at a rock-n-roll radio station.
• Rabbi David K. Basch (John J. Reiner) - A rabbi trying to guide his family through a difficult time.
• Jimmy LaMotta ‡ (Brad Silverman) - A dockworker with Down Syndrome.
• Leonard Dancey (Travis Michael Holder) - A lawyer defending a black woman accused of murdering her white lover.
• Ray Hutton (Michael Carl) - An actor traveling with a road show of Man of La Mancha.
• Dr. Timothy Mintz (Donald P. Bellisario) - A paranormal researcher investigating a possible haunting.
• Knut "Wild Thing" Wileton (Jeff Benson) - A college student, fraternity president and all-around party animal.
• Linda Brookner (Molly Meeker) - A real estate agent and single mother.
• Eddie Vega (Corey Smith) - A high school football quarterback.
• Peter Langly (Mark Marigian) - An FBI Agent guarding a federal witness.
• George Washakie (Jim Jaimes) - A Native American man who is on the run with his dying grandfather.
• Melvin Spooner (Marvyn Byrkett) - A mortician/coroner investigating the death of a young woman.
• Charlie "Black Magic" Waters (Robert "Rags" Woods) - An aging professional pool shark.
• Victor Panzini (Ted Nordblum) - An performer in a once-famous aerial act.
• "Buster" (Jay Boryea) - A bouncer helping his girlfriend kidnap a baby.
• Phillip Dumont (Kent Phillips) - A man trying to win back his ex-wife from her mafia fiancé.
• Jake Rawlins (Doug Bauer) - A San Diego narcotics detective.
• Sam Beckett (Adam Affonso) - Sam’s 16-year-old self.
• Herbert "Magic" Williams (Christopher Kirby) - Navy SEAL stationed in Vietnam.
• Fr. Frank Pistano (Bud Sabatino) - A recently ordained Catholic priest.
• Karl Granson (Danny McCoy, Jr.) - A professional fashion photographer.
• Joshua Rey (Chris Ruppenthal) - A horror novelist.
• Darlene Monty (Theresa Ring) - Miss Sugar Belle, a contestant in the Miss Deep South pageant.
• Ray Harper (Garon Grigsby) - A black medical school student with a white girlfriend.
• Harry Spontini (Dan Birch) - A professional magician fighting for custody of his daughter.
• Shane "Funny Bone" Thomas (Kristopher Logan) - A member of a roving motorcycle gang.
• Reginald Pearson (Milan Nicksic) - The personal assistant to a ruthless businessman.
• "Butchie" Rickett (Buff Borin) - A 13-year-old boy on vacation with his family.
• Billie Jean Crockett (Priscilla Weems) - A pregnant teenager estranged from her father.
• Kenny Sharpe (Matt Marfoglia) - An actor on the children’s television series Time Patrol.
• Rod McCarty (Chris Solari) - A performer with the Chippendales dance company.
• Joey DeNardo (Sam Clay) - A lounge musician working under the name Chuck Danner.
• Gilbert LaBonte (Richard White) - The owner and proprietor of the LaBonte Quilting and Sewing Academy (a front for a brothel).
• Jeffrey Mole/Tonic (Bruce Michael Paine) - The lead singer of a glitter rock band, King Thunder.
• Gordon O'Reilly (Ken Kells) - A professional bounty hunter.
• Jesus Ortega (Stephen Domingas) - A death row inmate.
• Terry Sammis (Jeff Hochendoner) - A wrestler performing under the name Nikolai Russkie.
• Eddie Elroy (Patrick M. Bruneau) - A college student and part-time atom bomb shelter salesman.
• Sam Bederman - A depression patient at a mental hospital.
• Cpt. Tom Jarret ¹ (Dean Denton) - A recently liberated WWII prisoner of war.
• A stand-up comic - An entertainer working the Catskills dealing with a bitter custody hearing.
• Lester Fuller (Owen Rutledge) - A minor league baseball player trying to get back into the majors.
• Archie Necaise (Bob Hamilton) - A police deputy working in a town in the path of a hurricane.
• Clyde (Glenn Edden) - A civil servant and recent inductee into the Ku Klux Klan.
• Frank Bianca (Robert Jacobs) - A professional hairdresser born Maurice Liptschitz.
• Katie McBain (Cheryl Pollak) - A rape victim.
• Bobo (a chimpanzee) - A chimpanzee in the early stages of Project Mercury.
• Jack Stone (David Garrison) - A police detective working on a gruesome murder investigation.
• Billy Beaumont (Ted Baader) - A con-artist claiming that he can make rain.
• Chance Cole (Mark Kemble) - A prisoner being held past his sentence at a forced labor camp.
• Joe Thurlow (Will Schaub) - A young actor in a relationship with an attractive older woman.
• Tommy York (Beau Windham) - A Naval cadet under investigation for being a homosexual.
• Dylan Powell (Harker Wade) - An aging television reporter covering the story of a serial murder.
• Tyler Means (Paul Bordman) - A former Old West gunslinger with an old partner who has come looking for revenge.
• Cherea (Tiffany Jameson) - A member of a rhythm and blues girl group.
• Eddie Brackett (Mark McPherson) - The co-pilot of a small aircraft over the Bermuda Triangle.
• Roberto Guttierrez (Andrew Roa) - A sensationalist reporter with a bizarre talk show.
• Max Greenman (Ross Partridge) - A taxi driver ferrying a woman claiming to be an angel.
• Lyle Hart (Patrick Lowe) - A soap opera actor kidnapped by an obsessed fan.
• Dr. Dale Conway (Rodger LaRue) - An archeologist uncovering a cursed tomb in Egypt.
• Davey Parker (Rafe Battiste) - A stand-up comedian with a loud-mouthed partner.
• Ens. Al Calavicci (Jamie Walters) - A Naval pilot on trial for the murder of a superior officer's wife.
• Lee Harvey Oswald (Willie Garson) - An emotionally disturbed man believed to be the sole assassin of President John F. Kennedy.
• Clint Hill (Himself (archival photographs)) - A Secret Service agent on President Kennedy’s protection detail.
• Nikos Stathatos (Socrates Alafouzos) - A sailor marooned on an island with a beautiful but shrewish heiress.
• Ronald Miller (Michael Carpenter) - A double-amputee recovering at a military hospital.
• Leon Stiles (Cameron Dye) - A serial killer holding a woman and her daughter hostage.
• Max Stoddard (Douglas Stark) - An old man with a UFO fixation.
• Connie LaMotta ² (Laura Harrington) - Homemaker and sister-in-law to Jimmy LaMotta
• Clayton Fuller (James Whitmore, Jr.) - Small town sheriff with a troubled but loving daughter.
• Will Kinman (Travis Fine) - Deputy sheriff trying to protect his fiancée from an angry mob.
• Lawrence Stanton III (W.K. Stratton) - Lawyer defending a woman for the murder of her long-time aggressor.
• William Walters, Jr. (Daniel Engstrom) - Part of a trio of bank robbers with a room full of hostages.
• Martin Elroy - A traveling salesman with two wives and families on the verge of meeting.
• Margaret Sanders - A homemaker and casual participant in the Women’s Liberation Movement.
• Dr. Ruth Westheimer (Herself) - Famous sex therapist.
• Nigel Corrington (Robert MacKenzie) - Eccentric artist and occultist believed to be a vampire.
• Arnold Watkins (Tristan Tait) - A college student moonlighting as a heroic vigilante, the Midnight Marauder.
• Dawn Taylor ² (Raquel Krelle) - A college student dating the head of a fraternity.
• Liz Tate (Cynthia Steele) - A prison inmate accused of murdering another inmate.
• Angela Jensen ² (Laura O’Loughlin) - A prison inmate accused of murdering another inmate.
• Clifton Myers ³ (Sam Scarber) - The warder of a women’s prison that sexually abuses the prisoners.
• Dennis Boardman (Stephen Bowers) - Bodyguard to Marilyn Monroe.
• Henry Adams (Mike Jolly) - A Vietnam veteran living in isolation in the mountains.
• Cpt. John Beckett (Rob Hyland) - Sam’s ancestor fighting in the Civil War.
• Elvis Presley (Michael St. Gerard) - 19-year-old amateur musician on the verge of getting discovered.

‡ Sam leaped into Jimmy again at a later date.
¹ Displaced by Al and later by Sam.
² Displaced by Alia.
³ Displaced by Zoey.