Thomas "Rocky" Cotton is a fictional character from the BBC soap opera EastEnders, played by Brian Conley. He was introduced under the alias Terry Cant, the estranged father of Sonia Fowler in episode 6274, broadcast on 18 May 2021, after his casting details were announced in February of that year. He was initially billed as the "ultimate people pleaser" and a charmer. In his time on the show, his storylines focused on the exposure of his false identity, his relationship and eventual marriage to Kathy Beale, burning down the Bridge Street Café in an insurance scam, and being one of the potential victims in "The Six" storyline. In September 2023, it was announced that Conley had left the soap, with his last appearance being depicted in episode 6830, which aired on 29 December 2023.

Brian Paul Conley is an English actor, comedian, singer and television presenter. Conley has been the host of The Brian Conley Show, as well as presenting the Royal Variety Performance on eight occasions. In his 40-year television career, he has starred in multiple award-winning television sitcoms including Time After Time and The Grimleys. In the West End, he has played the lead role in musicals such as Me and My Girl, Chitty Chitty Bang Bang, Hairspray, Oliver!, The Music Man, Barnum and Jolson for which he was nominated for a prestigious Laurence Olivier Award. As a musician, he has released five albums, including Brian Conley Sings, Let the Good Times Roll, and Stage to Stage. He has won numerous awards in his career including The National Television Award for Most Popular Comedy Performer, Best Live Performer in Manchester Evening News and a British Comedy Award.