Denise Richards Remembers Friend and ‘Starship Troopers’ Co-Star Patrick Muldoon: ‘I Don’t Know What I’m Going to Do Without You Here’

Denise Richards took to Instagram on Tuesday morning to remember her friend Patrick Muldoon, who died on April 19 at 57 years old.

“This is so hard for me to put into words,” Richards wrote. “I am deeply heartbroken & devastated losing you. You were my best friend & my family. We met in our first acting class, I was 19, never had an acting job and you were 21, a student at USC doing a recurring role on ‘Who’s the Boss.’ And here we are. 36 years later. My whole adult life & I don’t know it without you.”

She added, “The friendship, love, support, respect & loyalty we had was unconditional and rare. You lit up every room you walked into. You are larger than life & everyone was drawn to you. So talented & most underrated actor. And most humble. Everything you did was infectious. Your laugh, your kindness, your wit, your strength, your loyalty, your passion, and your zest for life. We’ve been each other’s rock. Our memories together are endless. You’ve had my back and protected me more than anyone. I don’t know what I’m going to do without you here.”

Richards and Muldoon appeared together in Paul Verhoeven’s 1997 sci-fi satire “Starship Troopers.” They are also set to co-star in Kevin Interdonato’s upcoming crime thriller “Dirty Hands.”

Richards concluded, “And now I need you more than ever, for this pain and heartache losing you. Schweetbabe we’ve had those conversations. We thought we’d live forever or at least into our 90’s. Schweetbabe I will be looking for those signs. I need to know you’re still here with me. I love you so much & miss you dearly schweetbabe.”

TMZ reported that Muldoon died on Sunday after suffering a heart attack in his Beverly Hills home. He is best known for originating the role of Austin Reed on the daytime soap opera “Days of Our Lives” from 1992 to 1995. He also starred on the primetime soap “Melrose Place” from 1995 to 1996. As a producer, he worked on films like “The Tribes of Palos Verdes,” “Arkansas,” “Marlowe,” “The Card Counter,” “The Dreadful” and “Riff Raff” through his Storyboard Productions.