The 56-year-old earned both an Oscar and BAFTA Film award for his role in "Bridge of Spies", and he locked up another accolade at the London ceremony for his work in acclaimed series "Wolf Hall", reported Daily Mirror.
Surprisingly, Rylance admitted winning the TV trophy was actually more nerve wracking than the other high-profile prizegivings he's attended this year.
"I'm so much more nervous at this ceremony tonight than I've (been)... Because I've been rather celebrated this year, more than is good for any man!
The historical miniseries, which also stars Damian Lewis, was also given the drama series trophy, beating out the likes of "Humans", "The Last Panthers", and "No Offence".
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New mother Suranne Jones was named leading actress for her role in "Doctor Foster", while other acting nods went to supporting actor Tom Courtenay for "Unforgotten", and supporting actress Chanel Cresswell for "This Is England '90", which also won the miniseries trophy.
Other winners included "Transparent" (International Series), "EastEnders" (Soap and Continuing Drama), Michaela Coel (Female Performance In A Comedy Program, Chewing Gum), and "The Great British Bake Off" (Features).
Lenny Henry was also presented with the Alan Clarke prize, named in honour of the late TV director, for his outstanding contribution to television.