Sure, in many cases they have the same last name, but you may be shocked to find out which famous faces actually share genes.
Pablo Schreiber and Liev Schreiber
Pablo Schreiber, known for his role as Pornstache in "Orange Is the New Black," and Liev Schreiber, who stars on Showtime's "Ray Donovan," are half-brothers.
Zoe Kravitz and Lisa Bonet
"Divergent" actress Zoe Kravitz is the daughter of "The Cosby Show" actress Lisa Bonet and musician Lenny Kravitz. Bonet and Kravitz eloped when they were young and were married for five years.
Alfie Allen and Lily Allen
Alfie Allen, aka Theon Greyjoy of the Iron Islands from the HBO series "Game of Thrones," is the younger brother of British singer Lily Allen.
Berry Gordy and Redfoo
Berry Gordy, founder of Motown record company, is the father of Redfoo, one half of electronic duo LMFAO.
Jussie Smollett and Jurnee Smollett-Bell
"Empire" actor-singer Jussie Smollett, is the older brother of "Underground" and "Roll Bounce" actress Jurnee Smollett-Bell.
Zoey Deutch, Madelyn Deutch and Lea Thompson
"Back to the Future" actress Lea Thompson, right, is mother to Zoey Deutch, left, of "Why Him?" and Netflix's "Set It Up" and musician-actress Madelyn Deutch. The three starred in 2017's "The Year of Spectacular Men," written by Madelyn and directed by Thompson, and all appeared in 2011's "Mayor Cupcake."
Jake Gyllenhaal and Maggie Gyllenhaal
"Southpaw" actor Jake Gyllenhaal, is the younger brother of "The Kindergarten Teacher" actress Maggie Gyllenhaal.
Elizabeth Olsen, Mary-Kate and Ashley Olsen
Now you see the resemblance: Elizabeth Olsen, center, who plays Wanda Maximoff in "Avengers: Infinity War" and "Avengers: Age of Ultron," is the Olsen twins' younger sister.
Beyoncé Knowles and Solange Knowles
Former Destiny's Child singer Beyoncé -- now dubbed "Queen Bey" by her hive of fans for her top hits and hardcore performances -- is the older sister of "Don't Touch My Hair" singer Solange. As a teen, Solange performed alongside Destiny's Child as a backup dancer and wrote songs for the group.
Diana Ross, Tracee Ellis Ross, Evan Ross
"I'm Coming Out" singer Diana Ross, is the mother of "Girlfriends" and "Blacki-sh" actress Tracee Ellis Ross, and "The Hunger Games" actor Evan Ross.
Bryce Dallas Howard and Ron Howard
"Jurassic World" actress Bryce Dallas Howard, is the daughter of "Happy Days" actor turned filmmaker Ron Howard. Ron has directed many popular films including "A Beautiful Mind," "The Da Vinci Code," and his latest, "Solo: A Star Wars Story."
Julia Roberts and Emma Roberts
A-list actress Julia Roberts is aunt to "Unfabulous" and "Scream Queens" actress Emma Roberts. Emma is the daughter of Julia's actor-brother Eric Roberts, who was nominated for a Oscar for his role in the film "Runaway Train."
John Cusack and Joan Cusack
Siblings John and Joan Cusack each have film careers dating back to the 1980s, and have appeared in 10 films together, including "Sixteen Candles," "Say Anything..." and "High Fidelity."
Oliver Hudson and Kate Hudson
"Rules of Engagement" and "Nashville" actor Oliver Hudson is the older brother of actress Kate Hudson ("Almost Famous," "How to Lose a Guy in 10 Days").
Larry David and Bernie Sanders
Comedian Larry David revealed that he uncovered his distant connection to Vermont senator Bernie Sanders while filming an upcoming episode of PBS' "Finding Your Roots," according to Variety.
Blake Lively and Bart Johnson
"Gossip Girl" actress Blake Lively is the sister-in-law of Bart Johnson from "High School Musical." Johnson is married to Blake's older sister, Robyn.
Ben Affleck and Barack Obama
"Batman" actor Ben Affleck is reportedly the 11th cousin of former President Barack Obama.
Dakota Johnson and Melanie Griffith
"50 Shades Darker" star Dakota Johnson is the daughter of actress Melanie Griffith.
Brad Pitt and Barack Obama
Actor Brad Pitt, is reportedly the ninth cousin of former President Barack Obama through a Virginia ancestor who died in 1769.
Warren Beatty and Shirley MacLaine
"Bonnie and Clyde" actor Warren Beatty is the younger brother of Hollywood legend Shirley MacLaine, who told Oprah, "When we were kids, I really did protect him. He always wanted to tag along with me and my girlfriends, but I always said, 'No, no, go home.' "
Paul McCartney and Stella McCartney
Eco-friendly British fashion designer Stella McCartney, is the daughter of The Beatles' singer Paul McCartney.
Melissa McCarthy and Jenny McCarthy
"Ghostbusters" actress Melissa McCarthy is the cousin of "Dirty Love" actress and former Playboy model Jenny McCarthy. Jenny revealed their relationship when she tweeted, "Congrats to my cousin melissa mccarthy on her Emmy win!!" after she won an Emmy for her role in the CBS series"Mike and Molly."
Robin Thicke and Alan Thicke
The late "Growing Pains" actor Alan Thicke, was "Blurred Lines" singer Robin Thicke's father.
Sarah Palin and Halle Berry
In a 2012 interview with "Extra," Halle Berry revealed she is related in "some twisted way" to controversial Republican and former governor of Alaska Sarah Palin.
Brian Williams and Allison Williams
"Girls" star Allison Williams, is the only daughter of Brian Williams, currently the host of MSNBC's "The 11th Hour With Brian Williams."
Emily Deschanel and Zooey Deschanel
The unusual last name gives this one away: "Bones" actress Emily Deschanel, is big sister to "New Girl" actress Zooey Deschanel.
Jamie Lee Curtis, Janet Leigh and Tony Curtis
"Freaky Friday" actress Jamie Lee Curtis is the daughter of late "Some Like It Hot" actor Tony Curtis and late "Psycho" star Janet Leigh. Curtis and Leigh gained popularity in the 50s and 60s.
Brandy and Ray J
R&B singer and "Moesha" actress Brandy, is big sister to TV personality and r&b singer Ray J, who was also a regular in the TV series.
Daisy Lowe and Gavin Rossdale
In 2004, a DNA test revealed British model and actress Daisy Lowe, then 15, is the daughter of Bush lead singer Gavin Rossdale, who was married to Gwen Stefani until 2016. Rossdale and Lowe's mother, Pearl Lowe, reportedly had a five-year relationship in the late 1980s.
Jerry Stiller and Ben Stiller
"The King of Queens" comedian Jerry Stiller, is "Zoolander" actor Ben Stiller's dad.
Quincy Jones and Rashida Jones
"Parks and Recreation" actress Rashida Jones, is the daughter of musician, music producer and film producer Quincy Jones.
Lily Collins and Phil Collins
"Mirror Mirror" actress Lily Collins is the daughter of English musician and former Genesis singer/drummer Phil Collins.
Debbie Reynolds and Carrie Fisher
The late "Singin' in the Rain" star Debbie Reynolds was the mother of the late "Star Wars" actress Carrie Fisher.