Coronation Street ’s Gareth Pierce is a soap legend playing Todd Grimshaw - but who is his rarely-seen partner? Gareth shot to fame when he joined the ITV soap in 2020 as Todd Grimshaw, replacing Bruno Langley. And during his stint on the show, he has played a part in several big moments. At the moment, Todd is involved in a harrowing storyline that is exploring abuse in a same-sex partnership . Over the last year, his partner Theo Silverton's true colours have come to light as he has been