Bree Treacy of RTÉ Ten disliked both Valentines, and Jim Shelley of the Daily Mail described him as a "weasel".
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Oliver was introduced alongside his older sister, Penny (Emma Catherwood), as a Foundation House Officer 1 (F1) on rotation at Holby City Hospital.
Oliver Cromwell | Oliver Stone | Oliver! | Oliver Goldsmith | Valentine's Day | Oliver | Jamie Oliver | Oliver Wendell Holmes, Jr. | Oliver Sacks | Oliver Wendell Holmes, Sr. | Oliver Twist | Oliver Wendell Holmes | Oliver Hardy | Oliver Reed | Oliver North | Oliver Nelson | Oliver Hazard Perry | Oliver Lake | Oliver Heaviside | Oliver O. Howard | Oliver Tambo | Valentine | Oliver Lodge | Oliver Letwin | Oliver Kahn | Oliver Knussen | Phil Valentine | Paul Oliver | Oliver Tompsett | Oliver Pocher |
When junior doctors, Oliver (James Anderson) and Penny Valentine (Emma Catherwood), joined the hospital, Oliver makes friends with Daisha and Chrissie.