Harland Williams is a Canadian and American actor. After several years of stand-up in Toronto and Los Angeles he made his film debut in Dumb and Dumber (1994) before playing starring roles in the short-lived sitcom Simon and the Disney comedy RocketMan (1997). He co-starred in Half Baked and played a psychopathic hitch-hiker in There's Something About Mary in 1998. He later appeared in films such as The Whole Nine Yards (2000), Freddy Got Fingered (2001) and Sorority Boys (2002), and provided voices in works such as Gary & Mike, Robots (2005), Meet the Robinsons (2007), and Sausage Party (2016). He is also an author of children's books, and creator of the children's animated series Puppy Dog Pals (2017–2023).

Dumb and Dumber is a 1994 American buddy comedy film directed by Peter Farrelly, who cowrote the screenplay with Bobby Farrelly and Bennett Yellin. It is the first installment in the Dumb and Dumber franchise. Starring Jim Carrey and Jeff Daniels, it tells the story of Lloyd Christmas (Carrey) and Harry Dunne (Daniels), two dumb but well-meaning friends from Providence, Rhode Island, who set out on a cross-country trip to Aspen, Colorado, to return a briefcase full of money to its owner, thinking it was abandoned as a mistake though it was actually left as a ransom. Lauren Holly, Karen Duffy, Mike Starr, Charles Rocket, and Teri Garr play supporting roles.