Klaus has my favorite power in the series ... Diego, other than Five, is one of the few Hargreeves children to have ever worked for the Commission, with his little stint with Lila in Season ...

Robert Sheehan, who plays Klaus Hargreeves, said to fans, “Dress up in costumes! Klaus, ghosts - I think we should utilize Halloween costumes all year round.” (From left to right) Emmy Raver ...

Who is Klaus Hargreeves? 'Number Four' is gifted with the ability to communicate with the dead (although he's often felt like his gift is more like a curse, leading to substance abuse issues).

Tom Hopper as Luther Hargreeves, Robert Sheehan as Klaus Hargreeves, Ritu Arya as Lila Pitts "I just watched the 2 min recap and realise that while season 1 and 2 are clear to me, I forgot so much ...

We might have had to say goodbye to the Hargreeves earlier this summer ... Luther (Tom Hopper), Diego (David Castañeda), ...

And here's what he looks like in Season 4 ...

Lila must now choose: Five or Diego? Allison Hargreeves (Emmy Raver-Lampman) and her daughter Claire, who just dug Klaus (Robert Sheehan) out of the grave, then show up at Lila’s home too.

From their immaculate Marigold conception to their subsequent adoption and training by Reginald Hargreeves (Colm Feore ... to Sloane (Genesis Rodriguez). Klaus (Robert Sheehan) has a profound ...

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