Answer: FLASHGORDON

AnswerCrossword Clue
FLASHGORDONSpaceman of serials
FLASHGORDONAlex Raymond comic strip
FLASHGORDONPre-Kirk space hero
FLASHGORDONComic-strip spaceman
FLASHGORDONSci-fi serial hero
FLASHGORDONSerial sci-fi hero
FLASHGORDONSpace traveler of serials
FLASHGORDON1934 strip created by Alex Raymond