Ollie is reprising his role two years after quitting the show in 2013, and fans were treated to a first glimpse of his return at the end of MIC: LA on Monday night (7 September).
Teasing fans ahead of the episode, Ollie said: "So if you wait till the end of what is a bloody sensational episode of Made In Chelsea, You might just see a very familiar face! #nextime."
Ollie added: "Luckily I watch next week's episode tonight!! And you are in for a treat... Just in case you don't know.. I'm back baby!! #madeinchelsea."
Ollie was in Los Angeles while the cast were filming this summer, and his appearance will be seen in next week's episode when best friend Binky Felstead confides in him following her relationship woes with Josh 'JP' Patterson.
After receiving an outpour of messages from fans who saw the teaser, Ollie said: "Bloody hell... What a response!! I LOVE you all!! After next week there is far more in series 10!! I'm super proud to be home!!!"
Ollie - well known for his fake tan, eccentric dress sense and patriotic car - was an original MIC cast member since its inception in 2011.
We're glad to have you back, Ollie!
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