The Activity Club and the Ice Dungeon Challenge

Max and Isaac walk over to a nutcracker in front of five photos on the wall. A golden plaque above them reads:

"5 people are going to a holiday party. Due to a Secret Santa mix up, there are two gift-givers, one of whom has a red present and one of whom has a blue present, 2 gift-receivers, and somebody who didn’t participate. It’s up to you to find out who each person is!"

The photos show several people, along with their ages, and their genders.

Jamie – 29 – girl
Evan – 32 – boy
Maya – 30 – girl
Ken – 25 – boy
Robin – 27 - boy

The plaque continues:

"You have a few clues to find out who the gift-givers, receivers, and non-participant are:
1. The gift-givers are not of the same gender.
2. The first letter of the blue gift-giver’s name is M.
3. The oldest person participated in the Secret Santa.
4. The giver of the blue gift and their receiver are the same gender.
5. The giver of the red gift has the shortest name.

Put the photo of the person next to their role in the gift exchange."

Isaac takes the picture of Jamie off the wall. What is her role?