Career: After stints in local theatre, Jason graduated to TV, joining Michael Palin, Eric Idle and Terry Jones for Do Not Adjust Your Set in 1967. In the early 1970s, he appeared in the films White Cargo and Under Milk Wood and played the lead in TV comedy A Sharp Intake of Breath, before being cast opposite Ronnie Barker in the popular sitcom Open All Hours. He worked with the comedian again in 1975 in Porridge when he played old man Blanco, a performance that prompted producers to invite him to audition for the role of Grandad in Only Fools and Horses in 1981. The show's makers decided to cast him as Del-Boy instead after noticing his obvious chemistry with on-screen brother Nicholas Lyndhurst. It turned him into a household name. In the 1980s, he also provided the voices for animated children's favourites, including Danger Mouse and Count Duckula. Jason's huge success continued in the 1990s with The Darling Buds of May and A Touch of Frost. Even though he retired from the role of Det Insp Jack Frost in 2008, after playing the character for 16 years, he claimed to have no plans to retire himself from acting. His recent work includes The Royal Bodyguard and Still Open All Hours.

Career: Gunn has appeared in a number of British TV series. One of his first appearances on the small screen was in an episode of Young Charlie Chaplin in 1989. Following this, he had guest appearances in such series as Pie in the Sky, Hetty Wainthropp Investigates, Grange Hill, The Bill and A Touch of Frost before landing a regular role in Heartburn Hotel between 1998 and 2000. He later played Len Cosgrove in the comedy drama Born and Bred between 2002 and 2005. In 2010, he first appeared in Coronation Street as Brian Packham, whom he played until 2013. He made a return in 2015 and became a series regular again in 2016. Gunn is best known to American audiences for playing Oswald Granger in Hannah Montana: The Movie (2009). He has also previously had parts in such American films as Roseanna's Grave (1997) and Ever After: A Cinderella Story (1998).