The 8th of 9 Wahlberg children, he was the "new kid" until he became big brother to Mark
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Interestingly, Donnie's younger brother, Mark Wahlberg, was a... [DOC] [TLE] Donnie Wahlberg - TV.com [PAR] Donnie Wahlberg was the 8th child (out of 9) born to Alma and Donald.