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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for McKellen or McEwan:

IANS: McKellen, McEwan and McShane
IANS: McEwan, McKellen and McShane
IAN: McEwan or McKellen
IAN: McKellen or McEwan
IANS: McEwan and McKellen