Gretchen Strom

 is Peanutjon's version of Gretchen. She is the shortest Fireside Girl.

Personality
Gretchen is very kind to her friends and enjoys hanging out with people.

Isabella
Gretchen is very close to Isabella and respects her, calling her ma'am or sir. She is Isabella's neighbor and likes hanging out with her.

Adyson
Gretchen also likes hanging out with Adyson, thought not as closely as Isabella. Gretchen and Adyson occasionally have fights over who's in charge when Isabella leaves.

Holly
Gretchen and Holly aren't seen together often, but are probably friends.

Katie
Gretchen and Katie are best friends. They are often seen together. They like hanging out a lot.

Ginger
Gretchen and Ginger aren't seen together much, although Gretchen seems slightly jealous when Ginger and Katie hang out.

Milly
Gretchen and Milly are friends, but aren't very close.

Rosie
Gretchen and Rosie don't interact much, but are occasionally shown together as friends.

Alice
Gretchen and Alice are almost as close as Gretchen and Katie. Gretchen, Katie and Alice are together a lot.

Phineas
Gretchen is often seen helping Phineas and Ferb, like the other Fireside Girls.

Ferb
Gretchen is often seen helping Ferb and Phineas, like the other Fireside Girls. Some people think she has a crush on him, but she doesn't.