安吉拉 is the standard transliteration of 'Angela,' chosen purely for sound:
安 'an' +
吉 'ji' +
拉 'la.'
佩特利 renders 'Petrelli.' Best known as the matriarch character in the NBC series 'Heroes' (《
英雄》, 2006-2010), which had a following in mainland China via online streams.