Sophia with other celebrities she is friends with or whom she met at events. In alphabetical order.
Al Pacino
Alfre Woodard
Alysia Reiner
Amber Valetta
America Ferrera
Ashley Rickards
– Co-stars on One Tree Hill
Ashley Tisdale
Austin Nichols
– Co-stars on One Tree Hill and ex-boyfriend
Bethany Joy Lenz & Paul Johansson
– Co-stars on One Tree Hill
Betty Who
Brian Geraghty
– Co-stars on Chicago PD
Brittany Snow
– Co-stars on John Tucker Must Die
Callie Khouri
Carmen Electra
Charlie Barnett, Yuri Sardarov and Joe Minoso
– Co-stars on Chicago Fire/PD
Connie Britton
Daphne Zuniga
– Co-stars on One Tree Hill
David Krumholtz
Co-stars on Partners
Debra Messing
Dick Wolf
– Creator/producer Chicago PD
Eamonn Walker
– Co-stars on Chicago Fire
Ed Westwick
– Co-stars on Chalet Girl
Elias Koteas
– Co-stars on Chicago PD
Elisha Cuthbert
Emma Roberts
Emmy Rossum
Felicity Jones
– Co-stars on Chalet Girl
Fergie
Gabrielle Union
Gavin DeGraw
– Sings the title song of One Tree Hill and guest stars
Gigi Hadid
Gina Rodriguez
Hayden Panettiere
Hilarie Burton
– Co-stars on One Tree Hill
Hilary Duff
Hilary Swank
Ian Somerhalder
– Co-stars on Stay Alive
Iggy Azalea
James Lafferty, Bethany Joy Lenz & Shantel VanSanten
– Co-stars on One Tree Hill
Jana Kramer
– Co-stars on One Tree Hill
Jared Padalecki
Jason Beghe
– Co-stars on Chicago PD
Jesse Lee Soffer
– Co-stars on Chicago PD and current boyfriend?
Jesse Tyler Ferguson & Sarah Hyland
Jimmy Fallon
Joe Davola
– Producer on One Tree Hill
Jordana Brewster
Jon Seda
– Co-stars on Chicago PD
Justin Long
Kate Mara
Kate Voegele
– Co-stars on One Tree Hill
Kate Walsh
Katherine Heigl
Katie Holmes
Kevin Zegers
– Co-stars on The Narrows
Kim Kardashian
Kristen Bell
Lady Gaga
LaRoyce Hawkins
– Co-stars on Chicago PD
Lauren German
– Co-stars on Chicago PD/Fire
Lea Michele
Leven Rambin
– Guest stars on One Tree Hill
Lily Collins
Marina Squerciati
– Co-stars on Chicago PD
Mariska Hargitay
– Sophia guest starred on Law & Order SVU
Mark Schwahn
– Creator of One Tree Hill
Markie Post
– Co-stars on Chicago PD
Matthew Perry
Max Azria
Mena Suvari
Michael Urie
– Co-stars on Partners
Michelle Trachtenberg
Monica Raymund
– Co-stars on Chicago Fire
Monique Lhuilier
Nick Lachey
– Guest starred on One Tree Hill
Nicole Richie
Olivia Wilde
Patrick John Flueger
– Co-stars on Chicago PD
Paul Johansson
– Co-stars on One Tree Hill
Penn Badgley and Blake Lively
Rachel Bilson
Sarah Hyland
Selena Gomez
Shantel Vansanten
– Co-stars on One Tree Hill
Sharon Lawrence
– Guest starred on One Tree Hill
Sophie Turner
Stella Maeve
– Co-stars on Chicago PD
Tatiana Maslany
Taylor Kinney
– Co-stars on Chicago Fire/PD
Torrey DeVitto
– Co-stars on One Tree Hill and Chicago PD/Med
Tyler Hilton and Hilarie Burton
– Co-stars on One Tree Hill