'The Flash': Tom Cavanagh Talks Taking On Harrison Wells

'The Flash': Tom Cavanagh Talks Taking On Harrison Wells

Tom Cavanagh chats with Access about the new CW series, “The Flash,” premiering October 7. How much fun has he had playing Harrison Wells, the founder of Star Labs who becomes a pariah after blowing up a particle accelerator? Plus, how is this role different from other roles he’s done?