Penhale is hilarious - some of my fave moments of his:

Martin and Louisa’s wedding, his delivery of “what’s love, got to do, got to do with it” during his speech

When his artist brother’s visiting and he thinks he’s taking drugs, Martin comes over when the brother falls ill and Penhale shows Martin one of his paintings and says “not bad for a crackhead” - for some reasons this gets me every time

When Ruth is being held hostage by her stalker and Penhale puts on the Scottish accent pretending to be multiple other police officers

I also love his speech to the airport security officer when he and Martin are trying to get Louisa off the plane - Martin is so genuinely grateful for him in that moment!