Lassar


 * "Lucas Finch" redirects here. For the Gizou who impersonated Lassar, also known as "Lucas Finch," see Lau'Tan.

Brother Lassar was a Krillitane who, under the name Mr Lucas Finch, took over Deffry Vale High School in order to crack the Skasis Paradigm, which would make both him and his brothers "gods". He and his "brothers" ate at least one school child and several of human staff of Deffry Vale. Lassar tempted the Tenth Doctor with the Paradigm, insisting on "the changes that could be made if this power was used for good"; that he could bring back Perganon, Ascinta or the Time Lords. Sarah Jane Smith stopped the Doctor and reminded him to "move forward". The Doctor declined Lassar's offer and ran. Eventually, Lassar's plan was foiled and he was believed to have perished along with the other Krillitanes when K9 Mark III blew up a vat of Krillitane oil, destroying both the Krillitanes and the school. (TV: School Reunion)

It was thought that Lassar had survived the blast, permanently adopted human form and the name Lucas Finch, and served as prosecutor when the Tenth Doctor was put on trial by the Shadow Proclamation. "Finch" was revealed to be Lau'Tan, a Gizou in disguise, hoping to use Lassar's form to manipulate the Doctor, the Krillitanes, and the Shadow Proclamation. (COMIC: Fugitive)

Personality
Under the guise of Lucas Finch or as himself, Lassar always came off as confident, calm, collected and soft-spoken, never raising his voice even during his confrontations with the Doctor. However, behind closed doors he could prove to be as savage and ferocious as any Krillitane, perfectly capable of killing and devouring anyone who got in his way. (TV: School Reunion)

Abilities
Unlike usual Krillitanes who typically change their physiology with each race they conquer, Lassar chose to adopt a human form, claiming it was a “personal favorite”. Even in this form, he possessed a superhuman level of strength, easily punching through a wall without injuring himself, as well as overpowering and devouring his victims within seconds. (TV: School Reunion)

Behind the scenes

 * Finch's first name "Lucas" was not given on screen in School Reunion, only on the Deffry Vale School website. According to an on-line interview with actor Anthony Head, Finch's original name in the script was "Hector", but this had to be changed when a check found a real headmaster named "Hector Finch". However, Finch's name is given as Hector in Doctor Who: The Encyclopedia and Doctor Who: The Secret Lives of Monsters.