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Siryn
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Creation & Design

Siryn was created by writer Roy Thomas and artist Dave Cockrum, first appearing in The X-Men #96. She was designed to be the daughter of the original Banshee, Sean Cassidy, and was introduced as a member of the X-Men.

Early Years

Initially, Siryn struggled with her powers and her identity as a mutant. She was often portrayed as a character seeking to prove herself among the X-Men, dealing with her father's legacy and her own abilities.

Character Development

Over the years, Siryn has evolved from a supporting character to a prominent member of various teams, showcasing her growth in confidence and leadership. Her struggles with her powers and her family legacy have made her a relatable character within the X-Men mythos.

Cultural Reception

Siryn has been well-received by fans and critics alike, often praised for her depth and complexity as a character. Her sonic scream ability has made her a unique addition to the X-Men roster.

Character Details

Real Name:
Theresa Cassidy
First Appearance:
Spider-Woman #37
Aliases:
Banshee, Siren
Species:
Mutant
Gender:
Female
Affiliations:
X-Men, X-Force, Marauders
Abilities:
Sonic scream, Flight, Enhanced hearing
Weight:
120lbs
Height:
5' 3"
Eye Color:
green
Hair Color:
red

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Spider-Woman #37
Marvel ⋅ 1981
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Spider-Woman #37
 
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$3
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$9
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$30

Key Facts

1st appearance Siryn, daughter of Sean Cassidy aka Banshee

Deadpool #56
Marvel ⋅ 2001
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Deadpool #56
 
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$12

Key Facts

Cover art by Karl Kerschl featuring Deadpool and Siryn

X-Factor #39
Marvel ⋅ 2009
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X-Factor #39
 
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$2
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$3

Key Facts

1st and only appearance of Sean Cassidy II (baby)

Siryn becomes pregnant with the child of one of Multiple Man's rogue duplicates and when the original Jamie Madrox holds the child, his body instinctively reabsorbs it to the horror of Siryn and Jamie

X-Factor #244
Marvel ⋅ 2012
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X-Factor #244
 
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$2
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$3

Key Facts

Siryn becomes the Morrigan, a Celtic goddess

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