- Xavier Gang
- "New York Charlie"/"Boss" (Charles Xavier)
- Mortimer Toynbee
- Piotr Rasputin
- Sheriff Summers
- Elizabeth Howlett
- Jamie Howlett
- John Howlett
- Victor Borkowski
- Any relation between this town and the Xavier Estate located on Graymalkin Lane in Westchester County, New York or the Graymalkin/Xavier Family remains unexplored.
- Rock formations around Graymalkin would suggest it is located in the northern portion of Arizona near/around Monument Valley.
- Appearances of Graymalkin (Arizona)
- Minor Appearances of Graymalkin (Arizona)
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