Rob Delaney and Sharon Horgan write and star in a comedy about a one-week stand between a Boston ad exec and a London schoolteacher that leads to an .\rbr\rbrCATASTROPHE TRAILER 2015. American boy Rob gets Irish girl Sharon pregnant while they hook up for a week while on a business trip to London. Subscribe .\rbr\rbrThe hit comedy starring Sharon Horgan and Rob Delaney returns. Watch the Catastrophe series 1 boxset on All 4 now: .\rbr\rbrCatastrophe | Coming Soon | Channel 4 New British comedy from Sharon Horgan and Rob Delaney.