Christopher Llewellyn
Christopher Llewellyn( born Christopher Griffiths) is an actor, best known for his role as Logan in the 2002 film" Where Were We ...".
Frank Smith (animator)
Frank A. Smith( August 31, 1911 – February 23, 1975) was an American cartoon animator and film director.
He was the father of actor and film director Charles Martin Smith, and the brother of animator/ director Paul J. Smith and animator Hank Smith.
Christopher Llewellyn Smith
Sir Christopher Llewellyn Smith FRS( born 19 November 1942) completed his D. Phil. in theoretical physics at New College, Oxford in 1967.
Thereafter he worked at the Lebedev Physical Institute in Moscow, CERN and then the SLAC before returning to Oxford in 1974.
Llewellyn Smith was elected a Fellow of the Royal Society in 1984.
While Chairman of Oxford Physics( 1987 – 92) he led the merger of five different departments into a single Physics Department.
Smith was Director General of CERN from 1994 through 1998.
Thereafter he served as Provost and President of University College London( 1999 – 2002).
Llewellyn Smith received the Glazebrook Medal and Prize of the Institute of Physics in 1999 and was knighted in 2001.
In 2004, he became Chairman of the Consultative Committee for Euratom on Fusion( CCE- FU).
Until 2009 he was Director of UKAEA Culham Division, which holds the responsibility for the United Kingdom's fusion programme and operation of the Joint European Torus( JET).
He is a member of the Advisory Council for the Campaign for Science and Engineering.
In 2013, he joined the National Institute of Science Education and Research( NISER), Bhubaneswar, India as a Distinguished Professor.
In 2015, he was awarded the Royal Medal of the Royal Society.
Christopher Bullock
Sir Christopher Llewellyn Bullock, KCB, CBE( 10 November 1891 – 16 May 1972), a prominent member of the Bullock family, was Permanent Under- Secretary at the British Air Ministry from 1931 to 1936.
Appointed at the age of 38, he remains one of the youngest civil servants to have headed a British Government department.
Michael Llewellyn-Smith
Sir Michael John Llewellyn- Smith( born 25 April 1939) is a retired British diplomat and academic.
He served as Ambassador to Poland from 1991 to 1996 and Ambassador to Greece from 1996 to 1999.
He is Visiting Professor to the Centre for Hellenic Studies, King's College London.
David Smith (curler)
David Smith is a Scottish curler.
He is the brother of curler Peter Smith and the father of curlers Kyle Smith and Cameron Smith.
David Llewellyn-Smith
David Llewellyn- Smith( born 16 March 1967) is an Australian writer and independent publisher in the field of macroeconomics.
Pereira Silima
Pereira Silima( born 14 March 1959) is a Tanzanian CCM politician and Member of Parliament for Chumbuni constituency since 2010.
He is the current Deputy Minister of Home Affairs.
Elizabeth Llewellyn-Smith
Elizabeth Marion Llewellyn- Smith( born 1934) is a British academic administrator, who was the principal of St Hilda's College, Oxford.
David Llewellyn-Smith
David Llewellyn- Smith( born 16 March 1967) is an Australian writer and independent publisher in the field of macroeconomics.

Question: Do Christopher Llewellyn Smith and Pereira Silima share the same nationality?
Answer: no