This is Aleksandar Jovanovic and according to IMDb he is playing... Rudolph.
To see his other work, click here... http://www.imdb.com/name/nm0431235/?ref_=tt_cl_t9


This is Michael Ford-FitzGerald and according to IMDb he plays... Hunt Leader.
To see his other work, click here... http://www.imdb.com/name/nm1854222/?ref_=tt_cl_t10


This is Devlin Lloyd and according to IMDb he plays... Savage Club Waiter.
(not a great pic but best i could find)
To see his other work, click here... http://www.imdb.com/name/nm6176818/?ref_=tt_cl_t11


This is Richard Buick and according to IMDb he is playing... Army Officer.
To see his other work, click here... http://www.imdb.com/name/nm6080848/?ref_=tt_cl_t13

Bethan Coomber is playing Joan Fawcett according to IMDb. I am having trouble finding a pic of her, will update asap.
http://www.imdb.com/name/nm7576598/?ref_=tt_cl_t15

Source: IMDb