7. Sonic Adventure
Sonic Adventure was not the greatest 'Sonic' game in the world, though the voice acting that it featured certainly did not provide it with any bonus points. Whilst other Sonic games contain a similar standard of voice acting, Sonic Adventure is one of the more 'dialogue-heavy' of the series and therefore subjects us to a significantly greater quantity of poor acting. The performances are undoubtedly cheesy, particularly when characters cry out in 'pain', if it can indeed be interpreted as pain. Although, one voice does stand out amongst the rest - 'Tails'. The voice of Tails is likely what gets on most players' nerves and whilst the character is presumably only voiced by a young actor, the fact that Tails is Sonic's closest companion makes him the most irritating.