Siryn vs Captain Mar-vell Real Name
Alter Ego
Theresa Maeve Rourke Cassidy
William Joseph Batson
Alias
Siryn Sonique Sy Terry Theresa Maeve Rourke Cassidy Theresa Cassidy Theresa Rourke Tracy Cassidy Banshee
Mar-Vell Captain Mar-Vell Dr. Walter Lawson The Protector Of The Universe Mahr-Vehl Mar Marv Marvin Ellwood Silvertop Phillip Lawson Marvel Universe Captain Universe Captain Marvin Geheneris Halason Mahr-Vehl Tinseltop Cap Warrior Lord Mar-Vell E-Vell Kre
In Films
Shauna Kain
Not Yet Appeared
Love Interest
No Love Interest
Alignment
Supervillain
Superhero