Zakaria Bulhan, 19, is accused of murdering retired teacher Darlene Horton, 64, at Russell Square on Wednesday evening.
He is also charged with the attempted murder of Martin Hoenisch, Lillie Selletin, David Imber, Bernard Hepplewhite and Yovel Lewronski, who were all injured in the same attack.
Bulhan, a Norwegian national of Somali origin who moved to the UK in 2002 and lives in Tooting, south London, appeared before Westminster Magistrates’ Court today.
He stood in the dock wearing a light grey tracksuit and carrying a handful of paperwork.
The teenager mumbled his name, address and date of birth to the court with his hand over his mouth.
Bulhan was unrepresented in court and sat hunched throughout the short hearing with his hand over his mouth.
He held his face in his hand as the names of the victims were read to him in court.
When asked if he understood the charges, he nodded and gave the judge a thumbs-up gesture.
Bulhan was remanded in custody and ordered to appear at the Old Bailey on August 9.