Olivia and Jason, 41, welcomed Otis in April 2014. The couple — who became engaged in January 2013 after two years of dating — recently had their second child, a daughter named Daisy Josephine Sudeikis, on Oct. 11.
Click through the gallery below to see more of Hollywood’s cutest kids!
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Phinnaeus, Hazel, and Henry Moder
The kids of Julia Roberts and Danny Moder.
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Milo and Elizabella Bugliari
Thes son and daughter of Alyssa Milano and David Bugliari.
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Apple and Moses Martin
The daughter and son of Gwyneth Paltrow and Chris Martin.
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The daughter of Katie Holmes and Tom Cruise.
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Arabella, Joseph and, Theodore Kushner
The daughter and two sons of Ivanka Trump and Jared Kushner.
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The son of John Travolta and Kelly Preston.
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The son of Prince William and Kate Middleton.
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Gia and Dominic Lopez
The daughter and son of Mario Lopez and Courtney Mazza.
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Marion and Tabitha Broderick
The twin daughters of Sarah Jessica Parker and Matthew Broderick.
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Rhodes Gilbert Perry
The son of Sara Gilbert and Linda Perry.
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The son of Charlize Theron.
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Bowie Ezio and Cy Aridio Perego-Saldana
The twins of Zoe Saldana and Marco Perego.
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The son of Sandra Bullock.
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Knox and Vivienne Jolie-Pitt
The twins of Angelina Jolie and Brad Pitt.
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Charlotte Grace Prinze
The daughter of Sarah Michelle Gellar and Freddie Prinze, Jr.
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The son of Gwen Stefani and Gavin Rossdale.
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Max and Emme Muñiz
The twins of Jennifer Lopez and Marc Anthony.
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Sunday Rose and Faith Margaret Urban
The daughters of Nicole Kidman and Keith Urban.
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Violet, Seraphina, and Samuel Affleck
The children of Jennifer Garner and Ben Affleck.
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The son of Reese Witherspoon and Jim Toth.
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Liam, Stella, Hattie, and Finn McDermott
The kids of Tori Spelling and Dean McDermott.
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Milan and Sasha Piqué Mebarak
The sons of Shakira and Gerard Piqué.
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The son of Hilaria Baldwin and Alec Baldwin.
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The daughter of Jimmy Kimmel and Molly McNearney.
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Sadie Grace LeNoble
The daughter of Christina Applegate and Martyn LeNoble.
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The son Nick Lachey and Vanessa Lachey.
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Axl Jack Duhamel
The son of Fergie and Josh Duhamel.
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The son of Simon Cowell and Lauren Silverman.
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Holt Fisher Smith
The son of Tiffani Thiessen and Brady Smith.
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Otis Alexander Sudeikis
The son of Olivia Wilde and Jason Sudeikis.
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Philomena Bijou Jovanovic
The daughter of Daphne Oz and John Jovanovic.
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David Banda Mwale Ciccone Ritchie and Mercy James
The son and daughter of Madonna.
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The daughter of Prince William and Kate Middleton.
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River Rose Blackstock
The daughter of Kelly Clarkson and Brandon Blackstock.
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The daughter of David Beckham and Victoria Beckham.
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The son of Lucy Liu.
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Frankie Barrymore Kopelman
The daughter of Drew Barrymore and Will Kopelman.
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Moroccan and Monroe Cannon
The twins of Mariah Carey and Nick Cannon.
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Honor Marie and Haven Garner Warren
The daughters of Jessica Alba and Cash Warren.
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Mabel Ray and Evelyn Penn Willis
The daughters of Bruce Willis and Emma Heming Willis.
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The daughter of Mark Zuckerberg and Dr. Priscilla Chan.
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Carmen and Rafael Baldwin
The daughter and son of Alec Baldwin and Hilaria Baldwin.
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Krishna Thea Lakshmi-Dell
The daughter of Padma Lakshmi and Adam Dell.
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The son of Lauren Bush Lauren and David Lauren.
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The son of Carrie Underwood and Mike Fisher.
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The son of Justin Timberlake and Jessica Biel.
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Mila and Poppy Hager
The daughters of Jenna Bush Hager and John Hager.
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Grey and Sailor Gardner
The sons of Liv Tyler and David Gardner.
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Charlotte Clinton Mezvinsky
The daughter of Chelsea Clinton and Marc Mezvinsky.
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Zachary and Elijah Furnish-John
The five-year-old and three-year-old sons of Elton John and David Furnish.
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Ryder Robinson and Bingham Bellamy
The sons of Kate Hudson.
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Benjamin and Vivian Brady
The kids of Gisele Bündchen and Tom Brady.
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Ella and Quinlin Stiller
The daughter and son of Ben Stiller and Christine Taylor.
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Ruby Sweetheart Maguire and Otis Tobias Maguire
The daughter and son of Tobey Maguire and Jennifer Meyer.
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Jovan "John John" Jovanovic
The son of Daphne Oz and John Jovanovic.
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Ava Marie Faustino
The daughter of David Faustino and Lindsay Bronson.
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The son of Anna Faris and Chris Pratt.
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Gideon and Harper Burtka-Harris
The twins of Neil Patrick Harris and David Burtka.
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Adrian Benjamin Colonomos
The son of Ginger Zee and Ben Aaroon.
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Lyric Sonny Roads Goldberg
The son of Soleil Moon Frye and Jason Goldberg.
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Weslie Fowler and Maddox Laurel Boss
The daughter and son of Allison Holker.
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Nahla Aubry and Maceo Martinez
The daughter and son of Halle Berry.
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Billie and Georgia Dane
The daughters of Eric Dane and Rebecca Gayheart.
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Jett and Ray Ling Song
The daughters of Lisa Ling and Paul Song.
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Kingston and Zuma Rossdale
The sons of Gwen Stefani and Gavin Rossdale.
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Charlotte and Rocky Prinze
The daughter and son of Freddie Prinze Jr. and Sarah Michelle Gellar.
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Marlowe and Major Martino
The daughter and son of Eva Amurri Martino and Kyle Martino.