Swash, in geography, is known as a turbulent layer of water that washes up on the beach after an incoming wave has broken. The swash action can move beach materials up and down the beach, which results in the cross-shore sediment exchange. The time-scale of swash motion varies from seconds to minutes depending on the type of beach (see Figure 1 for beach types). Greater swash generally occurs on flatter beaches. The swash motion plays the primary role in the formation of morphological features and their changes in the swash zone. The swash action also plays an important role as one of the instantaneous processes in wider coastal morphodynamics.

There are two approaches that describe swash motions: (1) swash resulting from the collapse of high-frequency bores (f>0.05Hz) on the beachface; and (2) swash characterised by standing, low-frequency (f<0.05Hz) motions. Which type of swash motion prevails is dependant on the wave conditions and the beach morphology and this can be predicted by calculating the surf similarity parameter εb (Guza & Inman 1975)

Joseph Swash (born 20 January 1982 in Islington, London) is an English presenter and actor. He once played Mickey Miller in the British television soap opera EastEnders. He is the older brother of Shana Swash, who played his on-screen younger sister Demi Miller until July 2006. He also won the TV reality show I'm a Celebrity... Get Me Out Of Here! on 5 December 2008. He reprised his role as Mickey Miller for 2 episodes in order to coincide with his on-screen brother's departure.

Swash studied at Highbury Grove School in Islington, and attended Anna Scher Theatre School on the advice of his mother's friend, actress Linda Robson. Swash attended the school with Natalie Cassidy, James Alexandrou and Brooke Kinsella, with whom he later worked in the soap EastEnders.

When Swash was seven, he made his first TV appearance in an Andrex advertisement, and at the age of eleven he was cast in the movie The Adventures of Pinocchio,as The Fighting boy with Dawn French and Griff Rhys Jones and also co starring along side Jonathan Taylor Thomas Richard Claxton and Correy Carrier his character in it was a small part being one the boys who gets turned into a donkey from going on a Roller Coaster his character is known as Fighting Boy because he gets into a fight with Lampwick over a gun. He made minor appearances in several television series such as Casualty, The South Bank Show, The Bill and Nickelodeon's LOL: Laugh Out Loud. In 2002, Joe Swash appeared as a participant in the ITV documentary Club Reps, and on 8 November 2008 Joe and his family appeared in Family Fortunes. He also appeared with his sister on the CITV Saturday morning show Ministry Of Mayhem.

Keith Lemon is a fictional character, portrayed by English comedian Leigh Francis. Lemon is most famous for his comedy panel show Celebrity Juice.

In a 2006 interview, Francis claimed that Lemon is loosely based on his best friend. Lemon is easily distinguished by his camp demeanour, exaggerated Yorkshire accent, bleached mullet, ginger moustache and fake tan. According to Leigh Francis, Lemon's background is that of a failed businessman, who was most successful in 1993, when he won the prestigious Businessman of the Year award for his innovative creation, the securi-pole".

Lemon was first portrayed in 2000, on a short lived television programme entitled "Whatever I Want", aired on London Weekend Television. The programme also featured Francis' other two main characters, Avid Merrion, and a human version of The Bear. All three characters were in very early stages of development, and in comparison to Francis' appearances in Bo' Selecta! and beyond, his actions and behaviour remain similar, but are noticeably different to that of the final personalities of the characters. An episode of this programme is available to view on YouTube.

Ashley Maria Roberts (born September 14, 1981) is an American dancer, showgirl, recording artist, model, actress, fashion designer and television personality, best known as a former member of the modern burlesque group the Pussycat Dolls. She left the Pussycat Dolls in 2010, to pursue a solo career and acting. She announced her album to be out in 2012.

Roberts was born in Phoenix, Arizona and attended Shadow Mountain High School. She began dancing at the age of three and singing at the age of eight. Her father was a drummer who played for The Mamas & the Papas. He later became a car dealer. Her mother was a Pilates instructor and they both inspired her to be a part of the entertainment industry. Her hair was brunette during her teenage years, as shown in Aaron Carter's "Oh Aaron" and "Not Too Young, Not Too Old" music video.

During high school summer breaks she had traveled to California to study modern dance. After high school, she moved permanently to Los Angeles. She has appeared in television commercials and music videos such as Counting Crows "Accidentally in Love", Josh Groban's "You Raise Me Up", Jane's Addiction's "True Nature", Aaron Carter's "Oh Aaron" and "Not Too Young, Not Too Old" and Pink's "Trouble". She has also appeared in the game show Rock and a Hard Place, hosted by Meatloaf, with fellow PCD members, Melody Thornton and Carmit Bachar.