One of the observations in the English spoken particularly in Nigeria is phonotactic constraints. The constraints pin down the generalization which guide the articulation of sequences of phonemes. The paper examines the patterns of English consonant clusters articulation of Nigerian broadcasters in the onset and coda positions against Received Pronunciation English. The study is conducted within the framework of Optimality Theory (henceforth OT). 20 radio and television broadcasters from 4 electronic media were selected as participants. Data were obtained by means of production test and OT was employed for the analysis. The findings revealed that the participants used epenthetic vowels to break-up consonants clusters in the onset and consonant deletion to simplify clusters in the coda. The subjects’ productions can be captured by ranking Markedness constraints higher than Faithfulness constraints.