Her twin sister, Katlyen.
Melanie is Sam's twin sister.
I do not think she has a Twin sister
no, kreayshawn doesn't have a twin sister:)
Not in real life, it was a special effect.
No, she does not have a twin sister. They only PRETENDED she did on an episode of iCarly.
In icarly yes but in real life no
Her twin sister, Katlyen.
Melanie is Sam's twin sister.
No, they just made it up for that episode that Sam had a twin sister called Melanie.
answer was wrong.. jenette mccurdy, has 3 older brothers no sisters,
Melanie was first introduced in the show iCarly, and has also been featured in Sam and Cat. She is Sam's identical twin sister.
No. They had a sister, but not a twin sister.
No, she never came back at all. In the middle of the series, Train will meet with Saya's twin sister but love does not blossom between them.
Alice McCurdy. There is Jennette McCurdy's sister name ! Also, Marcus McCurdy and her mother is Debora McCurdy
I do not think she has a Twin sister
She doesn't have a twin sister. But she has a sister, who is a twin.