Lindsay Lohan as Annie James and Hallie Parker
Double Trouble Fact: In a deleted scene, Hallie (as she is pretending to be Annie) meets the Queen of England, but it was cut from the film! You can view it here.
Dennis Quaid as Nick Parker
Double Trouble Fact: Quaid's son Jack played Marvel in the first Hunger Games movie.
Elaine Hendrix as Meredith Blake
Double Trouble Fact: The actress who plays Meredith's mother, Joanna Barnes, played the role of the gold digger in the original Parent Trap movie. In both movies, her character's name is Vicky/Vicki!
Lisa Ann Walter as Chessy
Double Trouble Fact: In her post-Parent Trap career, Walter hosted a radio show for KFI in Los Angeles called The Fabulous Lisa Ann Walter Show.
Simon Kunz as Martin
Double Trouble Fact: The song played while Martin and Annie perform their secret handshake, "Am I The Same Girl", contains the lyrics "Why don't you stop / And look me over / Am I the same girl you used to know?" OMG!!!
Maggie Wheeler as Marva Kulp Jr.
Double Trouble Fact: You might ALSO remember Maggie as Janice from Friends!!!
Natasha Richardson as Elizabeth James and Ronnie Stevens as Charles James have died since the film was released.
Richardson died in 2009 and James died in 2006.
And, just for fun...
Michael Lohan (YUP, Lindsay's brother!) as the boy mistakenly at the all-girls summer camp
Double Trouble Fact: Dina Lohan (Lindsay's mom) and her siblings Ali, Dakota, and Michael again also make a cameo during the Heathrow airport scene where Hallie (as Annie) meets Martin.
And...
Erin Mackey as Annie and Hallie's body double
Double Trouble Fact: Mackey has some serious experience working with child stars — she also had a part in You're Invited To Mary-Kate and Ashley's Fashion Party.
Looking good, you guys!
In a double-trouble error, the original photo for Erin Mackey actually depicted Tara Chang, Lindsay Lohan's fencing stunt double. In a true twist, Tara shares a birthday with Annie and Hallie — October 11!