Hey there, Liz - welcome to planDisney! I'm glad you stopped by, and thrilled to hear you have a trip to the Disneyland Resort coming up in a few short weeks!
Currently, you only need valid theme park tickets and theme park reservations to visit the parks, which you noted that you have. While you can
call a Cast Member at the Tickets line to change the names on your tickets, you don't need to do this to have each member of your party access the parks. When you arrive at the park entrance, the Cast Member at the turnstile will take a photo of you that will be associated with your ticket. As long as everyone uses the same ticket, then you're all set!
It sounds like your group will get just one day at the
Disneyland Resort, so I'd recommend getting there as close to park opening as you can and trying to stick it out until the park closes for a full day of fun. You'll be able to fit a lot in! With one day in the park, I also think purchasing the
Disney Genie+ service would be a huge help, as you'll be able to access the shorter lines through
Lightning Lane entrances for select attractions - and you'll also get
unlimited PhotoPass downloads to document your trip!
I hope you have such a fun time on your trip, Liz. Thank you again for your question! Please feel free to come back and see us again here at planDisney if you think of any follow-up questions. We'd love to help!
Have a Magical Day,
Greg