 As well as Jeff Tracy , English @-@ Canadian actor Peter Dyneley voiced the recurring character of Commander Norman , chief of air traffic control at London International Airport . His supporting character voices were typically those of upper @-@ class Englishmen . Shane Rimmer , the voice of Scott , was cast on the strength of his performance on the BBC soap opera Compact . Meanwhile , fellow Canadian Matt Zimmerman was selected at a late stage in the process . The expatriate West End actor was given the role of Alan on the recommendation of his friend , Holliday : " They were having great difficulty casting the part of Alan as they wanted a certain sound for him , being the youngest brother . David , who [ was ] a bit older than I am , told them that he had this friend , me , who would be great . " 
 As well as Jeff Tracy , English @-@ Canadian actor Peter Dyneley voiced the recurring character of Commander Norman , chief of air traffic control at London International Airport . His supporting character voices <a href='uninflect' title='1'><mark>were</mark></a> typically those of upper @-@ class Englishmen . Shane Rimmer , the voice of Scott , was cast on the strength of his performance on the BBC soap opera Compact . Meanwhile , fellow Canadian Matt Zimmerman was selected at a late stage in the process . The expatriate West End actor was given the role of Alan on the recommendation of his friend , Holliday : " They <a href='uninflect' title='2'><mark>were</mark></a> having great difficulty casting the part of Alan as they wanted a certain sound for him , being the youngest brother . David , <a href='null_relcl' title='3'><mark>who</mark></a>[ was ] a bit older than I am , told them that he had this friend , me , <a href='null_relcl' title='4'><mark>who</mark></a>would be great . " 
As well as Jeff Tracy , English @-@ Canadian actor Peter Dyneley voiced the recurring character of Commander Norman , chief of air traffic control at London International Airport . His supporting character voices was typically those of upper @-@ class Englishmen . Shane Rimmer , the voice of Scott , was cast on da strength of his performance on the BBC soap opera Compact . Meanwhile , fellow Canadian Matt Zimmerman was selected at a late stage in the process . Tdaexpatriate West End actor was given thdaole of Alan on thedacommendation of his homie , Holliday : " They was havin great difficulty casting the dat of Alan as they wanted a certain sound for him , being the youngest brother . David , [ was ] a bit older den I am , tld em that he had this friend , me , would b great . "