Rob Delaney

In December 2011, Comedy Central announced that Delaney would shoot a pilot for a variety show, called @RobDelaney. However, the series was not picked up. Instead, Delaney moved on to co-write and co-star with Sharon Horgan in Catastrophe, that began airing in the UK on January 19, 2015, on Channel 4. The show follows their characters after they get together following a brief affair while he is in the UK on business, and then moves there permanently after he learns that she has become pregnant. It debuted in the United States on Amazon in June 2015. The program ended after four seasons. Channel 4 aired the concluding episode on February 12, 2019, while Amazon announced the US release date to be March 15 of the same year. The series earned him his sole Emmy nomination, for "Outstanding Comedy Writing".

Since moving to the UK in 2014, Delaney has appeared on several British panel shows, including Have I Got News for You, Would I Lie to You?, 8 Out of 10 Cats Does Countdown, The Big Fat Quiz of the Year and Room 101. In 2016, he appeared on Travel Man as a guest host for the Spanish city of Seville, and in March 2021, he was the guest announcer on Ant & Dec's Saturday Night Takeaway.

In the film Deadpool 2 (2018), Delaney played Peter, an average middle-aged man who has no superpowers and joins Deadpool's X-Force. As part of the film's promotion, a Twitter account was launched in Peter's name.

Throughout 2019, Delaney had a series of cameos in Hollywood blockbuster films. He reteamed with director David Leitch and actor Dwayne Johnson for Hobbs & Shaw, in which he appeared as Agent Loeb. He appeared as a theater director in Paul Feig's comedy-drama Last Christmas. Both movies went to No. 1 at the UK box office. He also appeared opposite Anne Hathaway in The Hustle as Todd and the Fox News drama Bombshell co-starring Charlize Theron. He filmed a cameo as Elvis Presley in Dexter Fletcher's Elton John musical biopic Rocketman, which was omitted from the theatrical cut. It was also reported that he would appear opposite Reynolds another time, in Pokémon: Detective Pikachu. However, he did not appear in the final film. In September 2019 he was cast in The Good House opposite Sigourney Weaver and Kevin Kline.